inter-amnus, a, um, adj. amnis, that is between two rivers (as an adj., late Lat.): terras interamnas (al. interamnanas) recepimus (viz. Mesopotamia), Lampr. Alex. Sev. 56: Nilus ad insulae faciem spatia amplectitur interamna, Sol. 32, 1.

— Hence, Interamna, ae, f. (sc. urbs). The name of several Italian cities, Varr. L. L. 5, § 28.

—Esp. A city of Umbria, surrounded by the river Nar, the birthplace of the historian Tacitus and of the emperor of the same name, now Terni, Cic. Mil. 17, 46; id. Att. 2, 1, 5; Tac. H. 3, 63, 2.

— A city in Latium, on the Liris, now Teramo, Cic. Phil. 2, 41, 105; Liv. 26, 9, 3.

— Also called Interamnium, ii, n., Flor. 3, 21, 27.

— Derivv. Interamnas, ātis, adj., of or belonging to Interamna: ager, Liv. 10, 39, 1.

— Subst.: Interam-nātes, ium, m., inhabitants of Interamna, Cic. Att. 4, 15, 5: Interamnates cognomine Nartes, Plin. 3, 14, 19 § 113.

—Sing.: C. Causinius Schola, Interamnas, Cic. Mil. 17, 46.

— ‡ Interamnānus, a, um, adj., of or belonging to Interamna, Inscr. ap. Don. 161, 3.

— ‡ Interamnātus, a, um, the same: CIVITAS, Inscr. Orell. 3773.