(Greek mythology) goddess of discord; sister of Ares WordNet 3.0 & Open English WordNet

Eris is the Greek goddess of strife and discord. Wikipedia

Greek goddess of discord Wikidata

The goddess of discord and strife, whose apple of discord sparked events that eventually led to the Trojan War; equated by Homer with Enyo (goddess of violent war) and identified with the Roman goddess Discordia; (religion, Discordianism) the same figure as principal deity of Discordianism, regarded as the goddess of disorder. Wiktionary

Greek goddess of discord. Wiktionary (translation)