Probably from Greek helene - "torch" or possibly related to selene - "moon". In Greek mythology
"Helene" was the daughter of Zeus and Leda, whose kidnapping by Paris was the cause of the Trojan
War. The name was also borne by the 4th-century Saint Helena, mother of the Roman emperor
Constantine, who supposedly found the True Cross during a trip to Jerusalem.
The meaning of this name is unknown. It could be derived from the Celtic elements "artos" - "bear"
combined with "viros" - "man" or "rigos" - "king". Alternatively it could be related to an obscure
Roman family name "Artorius" (possibly of Etruscan origin). Arthur is the name of the central
character in Arthurian legend, a 6th-century king of the Britons who resisted Saxon invaders.