English

hydrophysics

From hydro- + physics.

Proto-Indo-European *wed- ‘water’

Proto-Indo-European *wódr̥ ‘water’

Proto-Hellenic *údōr ‘water’

Ancient Greek ῡ̆̔́δωρ ‘water’

Proto-Indo-European *bʰuH- ‘to become, grow’

…

Latin physica ‘study of nature’

Old French fisike ‘natural science’

Middle English phisik

English physic

Today it means

noun The physical movement of water resources.

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

Etymograph / hydrophysics