Grātius, a, name of a Roman gens. Gratius, ii, m., the opponent of the poet Archias, Cic. Arch. 4, 8; 6, 12.

— Gratius Faliscus, a contemporary of Ovid, author of a poem on hunting, Cynegeticon, Ov. P. 4, 16, 34.

— Deriv.: Grātiānus, a, um, adj., of or belonging to a Gratius, Gratian: vasa ex argento, Plin. 33, 11, 49, § 139.

—Subst.: Grātiānus, i, m., son and co-regent of the emperor Valentinian I., from 367 to 383 A. D.