Lewis Short
(adjective) : Aufĭdus, i, m., = Αὔφιδος
* A river in Apulia, remarkable for its swift and violent course, now Ofanto: longe sonans,Hor. C. 4, 9, 2: violens,id. ib. 3, 30, 10: acer,id. S. 1, 1, 58; on account of its divided outlet: tauriformis,id. C. 4, 14, 25; cf. Mann. Ital. II. p. 30 sq.—Hence, Aufĭ-dus, a, um, , of Aufidus: stagna,Sil. 10, 171.
Charlton T. Lewis, Charles Short, A Latin Dictionary