(adjective) : Augustīnus, a, um, Augustus * Of or pertaining to Augustus: currus,the chariot of Augustus.Suet. Cland. 11.
Charlton T. Lewis, Charles Short, A Latin Dictionary
Lewis Short
Augustīnus (noun M) : id. * A Roman cognomen, as D. Aurelius Augustinus, St. Augustine, the greatest of the Latin fathers, A. D. 354-430; cf. Tenffel. Rom. Lit. § 434.
Charlton T. Lewis, Charles Short, A Latin Dictionary
PIR
Male Personal name Confirmed occurences in the Roman Empire:
P. Messius Augustinus Maecianus (Masc, senator), ref: PIR M 0515 | PIR ID9193