Doctrine as a verb or adjective [closed]

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Indoctrinate:

to instruct in a doctrine, principle, ideology, etc., especially to imbue with a specific partisan or biased belief or point of view.

(Dictionary.com)

He was indoctrinated to uphold such beliefs.

Etymology:

1620s, perhaps modeled on French endoctriner or extended from earlier (now obsolete) verb indoctrine, endoctrine, "to instruct" (mid-15c.); see in- (2) "in" + doctrine + -ate (2)).

(Etymonline)