Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Vŏlāterrae, ārum, f., an ancient town in Etruria, now Volterra, Liv. 10, 12; Cic. Rosc. Am. 7, 20.
Hence, Vŏlāterrā-nus, a, um, adj., of or belonging to Volaterrœ, Volaterran: Vada, a seaport belonging to the territories of Volaterrœ, now Torre di Vado, Plin. 3, 5, 8, § 50; Cic. Quint. 6, 24.
Plur. subst.: Vŏlāterrāni, ōrum, m., the inhabitants of Volaterrœ, the Volaterrans, Plin. 3, 5, 8, § 52; Cic. Caecin. 7, 18; id. Att. 1, 19, 4; Liv. 28, 45 al.