abjudicate vs arbitrate

abjudicate

verb
  • To reject by judicial sentence. 

  • To abjudge. 

arbitrate

verb
  • To submit (a dispute) to such judgment 

  • To assign an arbitrary value to, or otherwise determine arbitrarily. 

  • To make a judgment (on a dispute) as an arbitrator or arbiter 

How often have the words abjudicate and arbitrate occurred in a corpus of books? (source: Google Ngram Viewer )