Webster's Revised Unabridged Dictionary · 1913

Christianize

Christianize , transitive verb

[Compare French christianiser, Latin christianizare, from Greek {not transcribed}.]

1.
To make Christian; to convert to Christianity; as, to Christianize pagans.
2.
To imbue with or adapt to Christian principles.
Christianized philosophers. — I. Taylor

Christianize , intransitive verb

To adopt the character or belief of a Christian; to become Christian.
The pagans began to Christianize. — Latham