Lewis & Short

Pincĭus, i, m.,

  1. I. the name of a Roman gens, Grut. 352, 5. Perh. after them was named the Mons Pincius, the eighth hill of Rome, situate outside the city, but enclosed by the Aurelian wall; called, at an earlier period, Collis hortorum, now Monte Pincio.
    Hence,
  2. II. Pincĭānus, a, um, adj., of or belonging to the Mons Pincius, Pincian: domus, Cassiod. Var. 3, 10.