English

electrobus

From electro- + bus.

Ancient Greek ἤλεκτρον ‘amber’

French electrum

French électro-

Proto-Indo-European *h₃ep- ‘to work’

…

Latin omnis ‘every’

Latin omnibus

French omnibus ‘omnibus’

English omnibus

English bus

Today it means

noun Synonym of electric bus.

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

Etymograph / electrobus