Lewis & Short

Pĕnestae, ārum, m., = Πενέσται,

  1. I. a people in Grecian Illyria, Liv. 43, 21.
  2. II. Pĕnestĭa, ae, f., the country of the Penestœ: in Penestiam exercitum reducit, Liv. 43, 19.
    Hence,
    1. B. Pĕnestĭānus, a, um, adj., Penestian, Liv. 43, 16.