Webster's Revised Unabridged Dictionary · 1913

Indoctrinate

Indoctrinate , transitive verb

[Prefix in- in + Latin doctrina doctrine: compare French endoctriner.]

1.
To instruct in the rudiments or principles of learning, or of a branch of learning; to imbue with learning; to teach; -- often followed by in.
A master that... took much delight in indoctrinating his young, unexperienced favorite. — Clarendon
2.
To instruct in, or imbue with, doctrines, principles or ideologies, especially from a specific point of view which may be partisan or biased; to strongly press one's own point of view upon.