used before a singular noun to mean one of a group, when it is not a particular one
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
abandonverbUS /əˈbændən/
forsake, leave behind
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
afterprepositionUS /ˈæftər/
later than; following
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
used to join words or parts of a sentence that go together
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
anticipationnounUS /ænˌtɪsəˈpeɪʃən/
an expectation
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
apparelnounUS /əˈpærəl/
clothing in general
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
in or near a particular place or position
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
bluffsnounUS /blʌfs/
plural of “bluff” — a high steep bank (usually formed by river erosion)
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
blushedverbUS /blʌʃt/
past form of “blush” — turn red, as if in embarrassment or shame
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
bravelyadverbUS /ˈbreɪvli/
in a courageous manner
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
emitting or reflecting light readily or in large amounts
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
brownsnounUS /braʊnz/
plural of “brown” — an orange of low brightness and saturation
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
used to introduce something that contrasts with what came before
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
showing who or what does the action
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
assign a specified (usually proper) proper name to
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
a person who is in charge
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
a visual attribute of things that results from the light they emit or transmit or reflect
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
crocusesnounUS /ˈkroʊkjuːsɪz/
plural of “crocus” — any of numerous low-growing plants of the genus Crocus having slender grasslike leaves and white or yellow or purple flowers; native chiefly to the Mediterranean region but widely cultivated
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
crowdingnounUS /ˈkraʊdɪŋ/
a situation in which people or things are crowded together
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
daintyadjectiveUS /ˈdeɪnti/
delicately beautiful
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
taking a series of rhythmical steps (and movements) in time to music
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
a Spanish gentleman or nobleman
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
donnedverbUS /dɑːnd/
inflected form of “don” — put clothing on one's body
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
encampmentnounUS /ɪnˈkæmpmɪnt/
a site where people on holiday can pitch a tent
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
apart from; not including
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
exposuresnounUS /ɪkˈspoʊʒərz/
plural of “exposure” — vulnerability to the elements; to the action of heat or cold or wind or rain
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
finaladjectiveUS /ˈfaɪnəl/
occurring at or forming an end or termination
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
firstadjectiveUS /fɜːrst/
preceding all others in time or space or degree
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
intended to be given to, or used by, somebody
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
from a particular thing or place or position (“forth” is obsolete)
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
showing where something starts, or who sent it
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
gailyadverbUS /ˈɡeɪli/
in a gay manner
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
gleamingnounUS /ˈɡliːmɪŋ/
a flash of light (especially reflected light)
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
a neutral achromatic color midway between white and black
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
graysnounUS /ɡreɪz/
plural of “gray” — a neutral achromatic color midway between white and black
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
relatively large in size or number or extent; larger than others of its kind
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
green color or pigment; resembling the color of growing grass
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
hadauxiliary verbUS /hæd/
the past form of “have”, used to form the past perfect
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
not easy; requiring great physical or mental effort to accomplish or comprehend or endure
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
hesitatingadjectiveUS /ˈhezəteɪtɪŋ/
lacking decisiveness of character; unable to act or decide quickly or firmly
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
plural of “hill” — a local and well-defined elevation of the land
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
hillsidesnounUS /ˈhɪlsaɪdz/
plural of “hillside” — the side or slope of a hill
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
inside something, or within a place, period, or state
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
belonging to the thing or animal already mentioned
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
kickverbUS /kɪk/
drive or propel with the foot
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
the act of caressing with the lips (or an instance thereof)
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
neutraladjectiveUS /ˈnuːtrəl/
having no personal preference
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
the region of the United States lying to the north of the Mason-Dixon line
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
used to make a word, phrase, or sentence negative
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
belonging to, or connected with, somebody or something
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
touching and supported by a surface
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
overlookingadjectiveUS /ˈoʊvərlʊkɪŋ/
used of a height or viewpoint
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
Piegan
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
pleasantlyadverbUS /ˈplezəntli/
in a cheerful manner
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
poplarnounUS /ˈpɑːplər/
soft light-colored non-durable wood of the poplar
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
poplars
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
make a promise or commitment
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
a purple color or pigment
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
to a degree (not used with a negative)
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
rampartnounUS /ˈræmpɑːrt/
an embankment built around a space for defensive purposes
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
recklessadjectiveUS /ˈrekləs/
marked by defiant disregard for danger or consequences
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
reservenounUS /rɪˈzɜːrv/
formality and propriety of manner
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
robesnounUS /roʊbz/
plural of “robe” — any loose flowing garment
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
(of persons or their actions) able or disposed to inflict pain or suffering
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
shelteredadjectiveUS /ˈʃeltərd/
protected from danger or bad weather
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
marked by exceptional merit
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
shiveredverbUS /ˈʃɪvərd/
past form of “shiver” — tremble convulsively, as from fear or excitement
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
shyverbUS /ʃaɪ/
start suddenly, as from fright
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
in or characteristic of a region of the United States south of (approximately) the Mason-Dixon line
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
the season of growth
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
spruces
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
sprungverbUS /sprʌŋ/
inflected form of “spring” — move forward by leaps and bounds
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
not in physical motion
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
Maintained an upright posture.
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
the warmest season of the year; in the northern hemisphere it extends from the summer solstice to the autumnal equinox
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
summer'snounUS /ˈsʌmərz/
possessive form of “summer” — the warmest season of the year; in the northern hemisphere it extends from the summer solstice to the autumnal equinox
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
the star that is the source of light and heat for the planets in the solar system
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
sunnyadjectiveUS /ˈsʌni/
bright and pleasant; promoting a feeling of cheer
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
sureradjectiveUS /ˈʃʊrər/
comparative of “sure” — having or feeling no doubt or uncertainty; confident and assured
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
surlyadjectiveUS /ˈsɜːrli/
inclined to anger or bad feelings with overtones of menace
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
used before a noun that is already known, already mentioned, or the only one of its kind
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
belonging to the people or things already mentioned
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
the people or things already mentioned, as the object
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
in or at that place or location
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
the people, animals, or things already mentioned, as the subject
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
not thin; of a specific thickness or of relatively great extent from one surface to the opposite usually in the smallest of the three solid dimensions
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
from one end or side of something to the other
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
up to a particular time
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
tintsnounUS /tɪnts/
plural of “tint” — a quality of a given color that differs slightly from another color
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
used before the base form of a verb to make the infinitive
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
uponprepositionUS /əˈpɑːn/
a formal word for “on”
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
having passed out of existence
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
past form of “wait” — stay in one place and anticipate or expect something
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
having or producing a comfortable and agreeable degree of heat or imparting or maintaining heat
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
wasauxiliary verbUS /wɑːz/
the past form of “be” used with I, he, she, it, or a singular noun
From this reading THE GREAT CHIEF On the rampart of hills overlooking the Piegan encampment the sun was shining pleasantly.
(geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
in or at the place that
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
including all components without exception; being one unit or constituting the full amount or extent or duration; complete
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure
From this reading And the poplars, hesitating with dainty reserve, shivered in shy anticipation and waited for a surer call, still wearing their neutral tints, except where they stood sheltered by the thick spruces from the surly north wind.
the coldest season of the year; in the northern hemisphere it extends from the winter solstice to the vernal equinox
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
in the company of; together with
From this reading The crocuses with reckless abandon had sprung forth at the first warm kiss of the summer sun and stood bravely, gaily dancing in their purple and gray, till whole hillsides blushed for them.
wooingnounUS /ˈwuːɪŋ/
a man's courting of a woman; seeking the affections of a woman (usually with the hope of marriage)
From this reading The winter, after its final savage kick, had vanished and summer, crowding hard upon spring, was wooing the bluffs and hillsides on their southern exposures to don their summer robes of green.
but in spite of that
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.
yieldedverbUS /ˈjiːldɪd/
past form of “yield” — be the cause or source of
From this reading Not yet had the bluffs and hillsides quite yielded to the wooing, not yet had they donned the bright green apparel of summer, but there was the promise of summer's color gleaming through the neutral browns and grays of the poplar bluffs and the sunny hillsides.