aversation

from The Collaborative International Dictionary of English v.0.48

Aversation \Av`er*sa"tion\, n. [L. aversatio, fr. aversari to
   turn away, v. intens. of avertere. See {Avert}.]
   A turning from with dislike; aversion. [Obs.or Archaic]
   [1913 Webster]

         Some men have a natural aversation to some vices or
         virtues, and a natural affection to others. --Jer.
                                                  Taylor.
   [1913 Webster]