The Collaborative International Dictionary of English v.0.48:
thaumaturgic \thau`ma*tur"gic\ (th[add]`m[.a]*t[^u]r"j[i^]k), thaumaturgical \thau`ma*tur"gic*al\ (th[add]`m[.a]*t[^u]r"j[i^]*kal), a. Of or pertaining to thaumaturgy; magical; wonderful. --Burton. [1913 Webster]