Frusinas
Could not find Frusinates in Logeion dictionaries. Looking for closest alphabetic form.
Frŭsĭnās, ātis, adj., de Frusino : fundus Cic. Att. 11, 4, 1, domaine de Frusino || Frusinātēs, ĭum, subst. m. pl., habitants de Frusino : Plin. 3, 64.