Meaning

noun an event that occurs when something passes from one state or phase to another

noun a relational difference between states; especially between states before and after some event

noun the action of changing something

originFrom Middle English changen, chaungen, from Old French changier, from Late Latin cambiāre, from Latin cambīre (“to exchange, barter”), derived from the noun cambium (“change”) (whence was loaned the English doublet cambium), from Gaulish cambion, earlier *kambyom (“change”), related to Proto-Celtic *kambos (“twisted, crooked”), possibly from Proto-Indo-European *(s)ḱh₂(e)mbos, *(s)kh₂(e)mbos…

Etymology from Wiktionary, CC BY-SA 3.0