What does Augustānus mean in Latin?

Augustānus, a adjective, means “pertaining to Augustus”.

adjective

Augustānus

Augustānus (Augustīānus, Suet Ner 25; Front. Col. pp. 1, 106, 139 Goes.: Augustānĕus, Auct. Limit. p. 265 Goes.), a, um, adj. Augustus.

I. Of or pertaining to Augustus: colonia, Dig. 50, 15, 1: DOMVS, Inscr. Orell. 2350 and 2947.—

II. Of or belonging to an emperor, imperial: Augustani, Roman knights appointed by Nero, Tac. A. 14, 15; Suet. Ner. 25.—

III. Augustāni, ōrum, m., the inhabitants of cities which had the title Augusta, Plin. 3, 3, 4, § 23 al.