LSJ
ου, ὁ, Magian, one of a Median tribe, Hdt. 1.101, Str. 15.3.1; hence, as belonging to this tribe, one of the priests and wise men in Persia who interpreted dreams, Hdt. 7.37, al., Arist. Fr. 36, Phoen. 1.5, Ev. Matt. 2.1.
enchanter, wizard, esp. in bad sense, impostor, charlatan, Heraclit. 14, S. OT 387, E. Or. 1498 (lyr.), Pl. R. 572e, Act. Ap. 13.6, Vett.Val. 74.17; also fem., Luc. Asin. 4, AP 5.15 (Marc. Arg.). μάγος, ον, as Adj., magical, μάγῳ τέχνῃ πράττειν τι Philostr. VA 1.2; κεστοῦ φωνεῦσα μαγώτερα AP 5.120 (Phld.). (OPers. maguš ΄Magian΄.)
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)