Erăsīnus | Erăsīnus, i (noun M.m) : Ἐρασῖνος * A river of Argolis, now Kephalari, Mel. 2, 3, 9; Plin. 2, 103, 106, § 225; Ov. M. 15, 276; cf. Sen. N. Q. 3, 26, 3. * † , , , = Ἐρασῖϝος, a favorite boy, Aus. Idyll. 7 praef.
Charlton T. Lewis, Charles Short, A Latin Dictionary
PIR
Male Personal name Confirmed occurences in the Roman Empire:
Q. Antonius Granius Erasinus (Masc, eques), ref: W. Eck, DNP - Nachträge s.v. Antonius | PIR ID1600