disfavor vs disfavour

disfavor

disfavour

verb
  • To show lack of favour or antipathy towards. 

noun
  • Lack of favour; displeasure. 

  • An unkindness; a disobliging act. 

  • A state of being out of favour. 

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