Slavize,v.|ˈslɑːvaɪz, ˈslævaɪz| [f. Slav n. + -ize.] trans. To Slavicize. 1887Eng.Hist.Rev. II. 676 Bigleniza may have been slavised from Vigilantia or Biglantia.1909Edin.Rev. July 142 The Bulgarians..have become wholly Slavised both in language and in sentiment.