Lewis Short
(adjective) : Arīon, ŏnis, m. (nom. Ario, Gell. 16, 19; acc. Gr. Ariona, Ov. F. 2, 83 al.), = Ἀρίων.
* A celebrated cithara player of Methymna, in Lesbos, rescued from drowning by a dolphin, Ov. F. 2, 79 sqq.; Gell. 16, 19; cf. Herod. 1, 23.—Hence, Arīŏnĭus, a, um, , = Ἀριόνιος, belonging to Arion: nomen,Ov. F. 2, 93: lyra,id. A. A. 3, 326; Prop. 2, 26, 18.
* A horse endowed with speech and the gift of prophecy, sent by Neptune to Adrastus; hence, vocalis, Prop. 2, 34, 37 fata movens, Stat. Th. 11, 443: Adrastaeus,id. S. 1, 1, 52; cf. Claud. IV. Cons. Hon. 555, and Hom. Il. 23, 346.
Charlton T. Lewis, Charles Short, A Latin Dictionary