Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Volsci, ōrum, m., the most considerable people in Latium, the Volsci, Volscians, Mel. 2, 4, 2; Liv. 1, 53; 2, 22 sq.; 3, 6 sq.; Cic. Brut. 10, 41; id. Balb. 13, 31; id. Off. 1, 11, 35; Verg. G. 2, 168 al.
Hence, Volscus, a, um, adj., of or belonging to the Volsci, Volscian: ager, Liv. 10, 1, 2: gens, Cic. Rep. 3, 4; Verg. A. 7, 803.
* Adv.: Volscē, after the manner of the Volsci: qui Obsce et Volsce fabulantur: nam Latine nesciunt, Titin. ap. Fest. s. v. obscum, p. 189 Müll.