καθηγ-ητής · kathēg-ētēs — LSJ
guide, Numen. ap. Ath. 7.313d.
teacher, professor, Phld. Ir. p.43 W., al., D.H. Th. 3, Ev.Matt. 23.10, Plu. Adul. 2.70e, Philum. Ven. 5.6, OGI 408 (Theb. Aegypt., ii A.D.), POxy. 930.6 (ii/iii A.D.), etc.:— also καθηγ-ητήρ, ῆρος, ὁ, Man. 2.300, Dor. καθᾱγ-, κελεύθου IG 12(1).44 (Rhodes):—fem. καθηγ-ήτειρα Call. Fr. 33P., Orph. H. 76.6.