Doctor, toris, m. g. Verbale. A teacher: a doctour.Artifices dicendi & doctores, Græci.Cic.Maisters and teachers of eloquence.Doctor & discipulus, opposita.Cic.Doctores & præceptores.Cic. Doctores blandí. Horat. Authoritas doctoris summa.Cic.Doctore nullo. Plin. Without any maister or instructour.Artis doctores. Quin. Cynicæ institutionis doctor. Ta. The teacher of the Cinikes profession.Sapientiæ doctores. Tac. Doctor rhetoricus.Cic.Teachers of chetorike.Doctor meus.Cic.
Lewis and Short: Latin dictionary
doctor, ōris, m. [doceo], a teacher, instructor, Cic. de Or. 1, 6, 23; 3, 15, 57; id. Div. 1, 3, 6; id. Or. 33, 117; Quint. 2, 2, 2; Hor. C. 4, 6, 25; id. S. 1, 1, 26; Vulg. Matt. 22, 35 et saep.