voltage

Etymology

From 'volt' (the unit of electrical potential) + the French suffix '-age' (denoting a collective or process). 'Volt' was named in 1881 in honour of Alessandro Volta (1745–1827), the Italian physicist who invented the voltaic pile — the first true electric battery — in 1800. Volta's surname likely derives from an Italian place name or from 'volta' (a turn, from Latin 'volvere,' to turn, to roll). The same PIE root *wel- (to turn, to wind) gave English 'revolve,' 'evolve,' 'involve,' 'volume' (originally a rolled scroll), and 'vulva.' The international adoption of 'volt' at the 1881 International Electrical Congress in Paris standardised the word worldwide. Key roots: Volta (Italian: "surname of Alessandro Volta").

Voltage traces back to Italian Volta, meaning "surname of Alessandro Volta". Across languages it shares form or sense with French voltage, Spanish voltaje, German Spannung and Italian voltaggio, evidence of a shared etymological family.