Source : Webster's Revised Unabridged Dictionary (1913)

Proselytize \Pros"e*ly*tize\, v. t. [imp. & p. p.
   {proselytized}; p. pr. & vb. n. {Proselytizing}.]
   To convert to some religion, system, opinion, or the like; to
   bring, or cause to come, over; to proselyte.

         One of those whom they endeavor to proselytize.
                                                  --Burke.