\Chris"tian*ize\, v. t. [imp. & p. p.
{Christianized}; p. pr. vb. n. {Christianizing}.] [Cf. F.
christianiser, L. christianizare, fr. Gr. ?.]
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.

\Chris"tian*ize\, v. i.
To adopt the character or belief of a Christian; to become
Christian.
      The pagans began to Christianize.        --Latham.