Lewis & Short

Sābātīnus (poet. Sābātĭus), a, um, adj., of or belonging to Sabate (a town of Etruria): lacus, the Lake of Sabate, now Lago di Bracciano, Front. Aquaed. 71; Col. 8, 16, 2; called lacus Sabate, Fest. p. 343 Müll.: Sabatina tribus, Liv. 6, 5 fin.; Fest. l. l.
Form Sabatius: stagna, Sil. 8, 492.