Ărĭdaeus, i, m., = Ἀριδαῖος,
a natural son of Philip of Macedon by the dancer Philinna , brother and successor of Alexander the Great , Just. 9, 8; 12, 15 al.; Curt. 10, 17.—Also called Philippus, Nep. Phoc. 3, 3; cf. Just. 13, 3.