Violanthe \vi(o)-lan-the, viol(a)-nthe\ as a girl's name is a variant of Violante (Greek, Latin) and Violet (Latin), and the meaning of Violanthe is "purple flower".
The baby name Violanthe sounds like Violanta, Philantha, Philanthie and Filanthia. Other similar baby names are Iolanthe, Yolanthe and Jolanthe.