English

hydro-

Hydro- comes from Ancient Greek ῡ̆̔́δωρ ‘water’, and goes back to Proto-Indo-European *wed-.

Proto-Indo-Europeanc. 4500–2500 BCE*wed-‘water’reconstructed
Proto-Indo-European, derivedc. 4500–2500 BCE*wódr̥‘water’reconstructed
Proto-Hellenicc. 2200–1600 BCE*údōr‘water’reconstructed
Ancient Greekc. 800–300 BCEῡ̆̔́δωρhū̆́dōr‘water’
Englishtodayhydro-

attested reconstructed ? uncertain or disputed

Lineage

Proto-Indo-Europeanc. 4500–2500 BCE*wed-‘water’reconstructed
Proto-Indo-European, derivedc. 4500–2500 BCE*wódr̥‘water’reconstructed
Proto-Hellenicc. 2200–1600 BCE*údōr‘water’reconstructed
Ancient Greekc. 800–300 BCEῡ̆̔́δωρhū̆́dōr‘water’
Englishtodayhydro-

Linked words

through Proto-Indo-European *wed- ‘water’

wet, wash, und, abundance, abundant, redundant, surround, otter, vitriol, vitreous, inundate, undine, 44 more

through Proto-Indo-European *wódr̥ ‘water’

water, vodka, vedra, 19 more

through Proto-Hellenic *údōr ‘water’

anhydrous, 15 more

through Ancient Greek ῡ̆̔́δωρ ‘water’

hydrate, aldehyde, hydride, 3 more

Today it means

prefix water

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

Etymograph / Proto-Indo-European *wed- / hydro-

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