The Collaborative International Dictionary of English v.0.48:

bolshevise \bolshevise\, bolshevize \bolshevize\v. [see
   Bolshevik.]
   to render communistic; -- of governments.

   Syn: communize, make communist.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

bolshevize
    v 1: make Communist or bring in accord with Communist
         principles; "communize the government" [syn: communize,
         communise, bolshevize, bolshevise]