English

hydroreceptor

From hydro- + receptor.

Proto-Indo-European *wed- ‘water’

Proto-Indo-European *wódr̥ ‘water’

Proto-Hellenic *údōr ‘water’

Ancient Greek ῡ̆̔́δωρ ‘water’

Middle English receptour ‘a shelterer of criminals’

Today it means

noun An organ that detects water.

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

Etymograph / hydroreceptor