The story
- Proto-Indo-European*wed-
- Proto-Indo-European*wódr̥
- Proto-Hellenic*údōr
- Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
- Ancient Greekῠ̔δρο- (hŭdro-)
- Englishhydro-
- Ancient Greekἤλεκτρον (ḗlektron)
- Latinēlectrum
- New Latinēlectricus
- Englishelectric
- Englishelectricity
- English todayhydroelectricity
From hydro- + electricity.
Etymology from Wiktionary, CC BY-SA 4.0.