English

greywater

From grey + water.

A compound of grey + water

Proto-Germanic *grēwaz ‘grey’

Proto-West Germanic *grāu ‘grey’

Old English grēġ ‘grey’

Middle English grey ‘grey’

English grey

Proto-Indo-European *wed- ‘water; to well’

…

Proto-Germanic *watōr ‘water’

Proto-West Germanic *watar ‘water’

Old English wæter ‘water’

Middle English water ‘water’

English water

Today it means

noun —

Language periods are conventional ranges, not dates for this word.

Etymograph / greywater