Strong's #3807: paidagogos (pronounced pahee-dag-o-gos')
from 3816 and a reduplicated form of 71; a boy-leader, i.e. a servant whose office it was to take the children to school; (by implication, (figuratively) a tutor ("paedagogue")):-- instructor, schoolmaster.
Thayer's Greek Lexicon:
́
paidagōgos
1) a tutor, i.e. a guardian and guide of boys. Among the Greeks and the Romans the name was applied to trustworthy slaves who were charged with the duty of supervising the life and morals of boys belonging to the better class. The boys were not allowed so much as to step out of the house without them before arriving at the age of manhood.
Part of Speech: noun masculine
Relation: from G3816 and a reduplicated form of G71
Citing in TDNT: 5:596, 753
Usage:
This word is used 3 times:
1 Corinthians 4:15: "though ye have ten thousand instructors in Christ, yet have ye not"
Galatians 3:24: "law was our schoolmaster to bring us unto Christ, that we might be justified"
Galatians 3:25: "we are no longer under a schoolmaster."