dicker vs disagreement

dicker

noun
  • A chaffering, barter, or exchange, of small wares. 

verb
  • To bargain, haggle or negotiate over a sale. 

  • To barter. 

disagreement

noun
  • A condition of not agreeing or concurring. 

  • An argument or debate. 

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