Meaning

noun a bitter quarrel between two parties

verb carry out a feud

originInherited from Northern Middle English fede, feide, from Old French faide, feide, fede, from Proto-West Germanic *faihiþu (“hatred, enmity”) (corresponding to foe + -th), from Proto-Indo-European *peyḱ- (“hostile”). Cognate to Old English fǣhþ, fǣhþu, fǣhþo (“hostility, enmity, violence, revenge, vendetta”), German Fehde, and Dutch vete (“feud”) (directly inherited from Proto-West Germanic)…

Etymology from Wiktionary, CC BY-SA 3.0