Lexical Definition

‎καθηγητής‎ kathēgētḗs (kath-ayg-ay-tace') teacher ^G:N-M
from a compound of ‎κατά‎ and ‎ἡγέομαι‎

master.

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

Abbott-Smith

* καθηγητής, -οῦ, ὁ (< καθηγέομαι, to go before, guide),
1. prop., a guide.
2. a master, teacher (MGr. professor): Mt 23:16.†

Abbott-Smith References

Liddell-Scott-Jones

καθηγητής-ητής, οῦ, ὁ,

guide, [Refs 2nd c.AD+]

__2 teacher, professor, [NT+1st c.BC+], etc.:— also καθηγητής-ητήρ, ῆρος, ὁ, [Refs 4th c.AD+], Doric dialect καθᾱγ-, κελεύθου [Refs]:—feminine καθηγητής-ήτειρα [Refs 3rd c.BC+]

_{LSJ Scripture Refs: Matt.23.10}