Webster's Revised Unabridged Dictionary · 1913

Pedagogue

Pedagogue (ped"a*gog) , noun

[French pédagogue, Latin paedagogus, Greek paidagwgo`s; pai^s, paido`s, a boy + 'a`gein to lead, guide; compare 'agwgo`s leading. See Page a servant, Agent.]

1.
(Greek Antiquities) A slave who led his master's children to school, and had the charge of them generally.
2.
A teacher of children; one whose occupation is to teach the young; a schoolmaster.
3.
One who by teaching has become formal, positive, or pedantic in his ways; one who has the manner of a schoolmaster; a pedant. — Goldsmith

Pedagogue , transitive verb

[Compare Latin paedagogare to instruct.]

To play the pedagogue toward. [Obsolete] — Prior