Grātĭus — Lewis & Short
Grātĭus, a,
I name of a Roman gens.
1 Gratius, ii, m., the opponent of the poet Archias, Cic. Arch. 4, 8; 6, 12.—
2 Gratius Faliscus, a contemporary of Ovid, author of a poem on hunting, Cynegeticon, Ov. P. 4, 16, 34.—
II Deriv.: Grātĭānus, 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.