aby vs barter

aby

verb
  • To endure or tolerate (something); to experience. 

barter

verb
  • To exchange goods or services without involving money. 

noun
  • An exchange of goods or services without the use of money. 

  • The goods or services used in such an exchange. 

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