Eumenides

Eumenides (noun) refers to the benevolent ancient Greek goddesses of vengeance, who, in Greek mythology, are the Furies renamed after transformation into protectors of order. The term is often used collectively for the Eumenides cycle of myths, and it appears in scholarly and literary contexts to denote these revered goddesses. In modern usage, it can also denote a personified, protective force guiding justice and retribution with a ceremonial or ritual undertone.