Lewis & Short

2. Vibo or Vibon, ōnis, f., a town in the territory of the Bruttii, now Monteleone, Mel. 2, 4, 9; Plin. 3, 5, 10, § 73; Cic. Att. 16, 6, 1; Mart. Cap. 6, § 645.
Hence, Vibōnensis, e, adj., of or belonging to Vibo: ager, Liv. 21, 51, 4 sqq.; Cic. Att. 16, 6, 1.