The Collaborative International Dictionary of English v.0.48:
Simoniacal \Sim`o*ni"a*cal\, a. Of or pertaining to simony; guilty of simony; consisting of simony. -- Sim"o*ni`a*cal*ly, adv. [1913 Webster] The flagitious profligacy of their lives, and the simoniacal arts by which they grasped at the popedom. --J. S. Harford. [1913 Webster]