fem. proper name, from French Hélène, from Latin Helena, from Greek Helene, fem. proper name, probably fem. of helenos "the bright one." In Greek legend, the sister of Castor and Pollux and wife of Menelaus, king of Sparta. Her elopement with Paris was the cause of the Trojan War. Among the top 10 popular names for girl babies in the U.S. born between 1890 and 1934.