The Collaborative International Dictionary
Aversation
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]
Some men have a natural aversation to some vices or
virtues, and a natural affection to others.
--Jer.
Taylor.
Wiktionary
aversation
n. (context obsolete English) A turning from with dislike; aversion.