Lewis & Short

rhētŏrĭco, āvi, 1 (ante-class.), and rhētŏrĭcor, āri, v. dep. (post-class.) [rhetoricus], to speak rhetorically or like an orator, Novat. ap. Non. 476, 6 (Com. Rel. p. 216 Rib.); act. form, Tert. Res. Carn. 5.