The story
- Proto-Indo-European*úp
- Proto-Indo-European*upér
- Proto-Germanic*uber
- Old Englishofer-
- Middle Englishover-
- Englishover-
- Englishvoltage
- English todayovervoltage
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: The difference between the electric potential of an electrode or cell under the passage of a current and the thermodynamic value of the electrode or cell potential in the absence of electrolysis. Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.