Meaning

adjective in operation or operational

adjective (of events) planned or scheduled

adverb with a forward motion

originEtymology tree Proto-Indo-European *h₂en-der. Proto-Germanic *an Proto-West Germanic *ana Old English on Middle English on English on From Middle English on, from Old English on, an (“on, upon, onto, in, into”), from Proto-West Germanic *ana, from Proto-Germanic *ana (“on, at”), from Proto-Indo-European *h₂en- (“on, onto”). Cognates Cognate with Yola a, an, ana, on (“on”), Saterland Frisian an…

Etymology from Wiktionary, CC BY-SA 3.0