Lewis & Short

maccus, i, m. [cf. Sanscr. mūkas, dumb; Gr. μῶκος, mockery; also Μῶμος],

  1. I. a buffoon, punchinello, macaroni, in the Atellane plays: in Atellana Oscae personae inducuntur, ut maccus, Diom. p. 488 P.; cf. Inscr. Orell. 2621.
  2. II. Transf., a simpleton, blockhead: macci et buccones, App. Mag. p. 325, 30.