Lewis Short
(adj.adj.) : Sūtrĭum, ii, n.
* An ancient town in Etruria, now Sutri, Liv. 6, 3, 2; 6, 9; 6, 32; Vell. 1, 14. — Prov.: quasi eant Sutrium, i. e. to set about any thing well prepared (as Camillus, when he marched to the conquest of Sutrium), Plaut. Cas. 3, 1, 10; cf. Fest. p. 310 Müll. — Hence
* Sūtrīnus, a, um, adj., of or belonging to Sutrium: ager,Liv. 26, 34: colonia,Plin. 3, 5, 8, § 51. — Subst.: Sūtrīni, ōrum, m., the inhabitants of Sutrium, Liv. 6, 3.
* Sūtrĭus, a, um, adj., of Sutrium: tecta,Sil. 8, 493.
Charlton T. Lewis, Charles Short, A Latin Dictionary