Meaning

noun action taken in return for an injury or offense

verb take revenge for a perceived wrong

originFrom Middle French revenge, a derivation from revenger, from Old French revengier (possibly influenced by Old Occitan revènge (“revenge, comeback”), from Old Occitan revenir (“to come back”)), a variant of Middle French revancher (whence deverbal French revanche), from Old French revenchier. The variants Old French vengier (whence French venger) and Old French venchier are both descended from…

Etymology from Wiktionary, CC BY-SA 3.0