Lewis & Short

Pĕrŭsĭa, ae, f.,

  1. I. one of the twelve confederate towns of Etruria, the mod. Perugia, Liv. 9, 37, 12; Suet. Aug. 14; Vell. 2, 74, 3; Flor. 4, 5, 3.
    Hence,
  2. II. Pĕrŭsī-nus, a, um, adj., Perusian: Perusina cohors, Liv. 23, 17: contentio, i. e. the siege of Perusia by Octavianus, Plin. 7, 45, 46. § 148; the famine produced in the town by this siege (cf. Flor. 4, 5, 3) is referred to in Perusina fames, Luc. 1, 41; Aus. Ep. 22, 42: sepulcra, Prop. 1, 22, 3.
    Subst.: Pĕ-rŭsīni, ōrum, m., the Perusians, Liv. 10, 30 sq.
    Pĕrŭsīnum, i, n., a countryseat in the Perusian territory, Plin. Ep. 1, 4, 1.