Entry 3 senses · 2 variants Webster, 1913 Gentilize · Gen·til·ize · IPA v. i. v. i. 01 v. i. To live like a gentile or heathen. 1. To live like a gentile or heathen.[Obs.] 2. To act the gentleman; -- with it (see It, 5).[Obs.] See: It 02 v. i. To render gentile or gentlemanly; as, to gentilize your unworthy sones. 1. To render gentile or gentlemanly; as, to gentilize your unworthy sones.[R.]