Source : Webster's Revised Unabridged Dictionary (1913)

Gentilize \Gen"til*ize\, v. i. [See {Gentile}.]
   1. To live like a gentile or heathen. [Obs.] --Milton.

   2. To act the gentleman; -- with it (see {It}, 5). [Obs.]

Gentilize \Gen"til*ize\, v. i.
   To render gentile or gentlemanly; as, to gentilize your
   unworthy sones. [R.] --Sylvester.