The Collaborative International Dictionary of English v.0.48:

thaumaturge \thau"ma*turge\ (th[add]"m[.a]*t[^u]rj), n. [See
   thaumaturgus.]
   A magician; a wonder worker. --Lowell.

   Syn: thaumaturgist.
        [1913 Webster] thaumaturgic

WordNet (r) 3.0 (2006):

thaumaturge
    n 1: one who practices magic or sorcery [syn: sorcerer,
         magician, wizard, necromancer, thaumaturge,
         thaumaturgist]