dusk

Etymology

* (adjective): From Middle English dosk, duske (“dusky”, adj.), 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 (dhūsara, “dust-colored”)), from Proto-Indo-European *dʰewh₂- (“smoke, mist, haze”). More at dye. Related to dust. * (verb): From Middle English dusken, from Old English doxian.

noun

1. A period of time at the end of day when the sun is below the horizon but before the full onset of night, especially the darker part of twilight.
2. A darkish colour.
3. The condition of being dusky; duskiness

verb

1. (intransitive) To begin to lose light or whiteness; to grow dusk.
   I see the air benighted And all the dusking dales, And lamps in England lighted, 1936, Alfred Edward Housman, More Poems, XXXIII, lines 25-27
2. (transitive) To make dusk.

adj

1. Tending to darkness or blackness; moderately dark or black; dusky.