Lewis & Short

Pūpĭus, i, m.,

  1. I. the name of a Roman gens.
      1. 1. Cn. Pupius, Cic. Fam. 13, 9, 3.
      2. 2. L. Pupius, a centurion of the primipili, a Pompeian, Caes. B. C. 1, 13.
      3. 3. Pupius, a tragic poet, Hor. Ep. 1, 1, 67.
        Hence,
  2. II. Pū-pĭus, a, um, adj., of or belonging to a Pupius, Pupian: lex, of the people’s tribune Pupius, Cic. Q. Fr. 2, 11 (13), 3; id. Fam. 1, 4, 1.