The Collaborative International Dictionary of English v.0.48:

Paraschematic \Par`a*sche*mat"ic\, a. [Gr. ? to change from the
   true form.]
   Of or pertaining to a change from the right form, as in the
   formation of a word from another by a change of termination,
   gender, etc. --Max M["u]ller.
   [1913 Webster]