Megaera in Wikipedia

Megaera (Ancient Greek: Μέγαιρα, English translation: "the jealous one") is one of the Erinyes in Greek mythology. She is the cause of jealousy and envy, and punishes people who commit crimes, especially marital infidelity. Like her sisters Alecto and Tisiphone, she was born of the blood of Uranus when Cronus castrated him. In modern French (mégère) and Portuguese (megera), derivatives of this name are used to designate a jealous or spiteful woman. In Italian and Russian, the word megera indicates an evil and/or ugly woman. - Wikipedia