καθηγητής kathēgētḗs

Meaning

a guide, i.e. (figuratively) a teacher

In the King James Version: master

Derivation: from a compound of G2596 (κατά) and G2233 (ἡγέομαι);

Where it is used

• Matthew 23:10 Nor are you to be called instructors, for you have one Instructor, the Christ.