From Middle English dosk, duske (adj., “dusky”), from Old English dox (“dark, swarthy”), from Proto-Germanic *duskaz (“dark, smoky”), from Proto-Indo-European *dhūs (cf. Old Irish donn 'dark', Latin fuscus 'dark, dusky', Sanskrit dhūsaras 'dust-colored'), from *dhū, dheu- 'to smoke, dust'. More at dye. Related to dust.
dusk (plural dusks)
- A period of time occurring at the end of the day during which the sun sets.
- A darkish colour.
- Whose dusk set off the whiteness of the skin.
- (times of day) time of day; dawn, morning, noon/midday, afternoon, evening, dusk, night, midnight (Category: en:Times of day)
- (intransitive) to begin to lose light or whiteness; to grow dusk
- (transitive) To make dusk.
- After the sun is up, that shadow which dusketh the light of the moon must needs be under the earth.
- Tending to darkness or blackness; moderately dark or black; dusky.
- A pathless desert, dusk with horrid shades.