Lewis & Short

Sătŭrĭo, ōnis, m. [satur].

  1. I. The name of a lost comedy of Plautus, Gell. 3, 3, 14.
  2. II. The name of a parasite in the Persa of Plautus; hence, in a lusus verbb.: Essurio venio, non advenio saturio, Plaut. Pers. 1, 3, 23.