Morgaine \m(o)-rgai-ne, mor-gaine\ as a girl's name is a variant of Morgan (Welsh, Old English), and the meaning of Morgaine is "circling sea or great brightness; bright or white sea dweller".
The baby name Morgaine sounds like Morgayne, Morganne and Morgane. Other similar baby names are Morine, Morgin, Morgann, Morgance and Morgana.