Lewis & Short

Thĕon, ōnis, m.

  1. I. A satirical poet.
    Hence, Thĕōnīnus, a, um, adj., of or belonging to Theon: dens, Hor. Ep. 1, 18, 82.
  2. II. A celebrated Samian painter, Quint. 12, 10, 6; Plin. 35, 11, 40, § 144.