To begin to lose light or whiteness; to grow dusk.
To make dusk.
Adjective
Tending to darkness or blackness; moderately dark or black; dusky.
Related
Narrower meaning words
astronomical dusk
civil dusk
nautical dusk
Origin
From Middle English dosk, duske, from Old English dox ("dark, swarthy"), from Proto-Germanic *duskaz ("dark, smoky"), from Proto-Indo-European *dʰuh₂s- (compare Old Irish donn ("dark"), Latin fuscus ("dark, dusky"), Sanskrit धूसर ("dust-colored")), from Proto-Indo-European *dʰewh₂- ("smoke, mist, haze"). More at dye. Related to dust.
Modern English dictionary
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