Also means Trojan, from Ilion, one of the names for the city of Troy.
― Anonymous User 8/22/2009
4
I did some major research on this name prior to giving it to my daughter. Everything I have read prior to this site said it was Greek, meaning Bright. A character in Marvel comics has this name as well, and both she and my daughter are pronounced "Ill- ee- ahn- uh".