defeasance vs yielding

defeasance

verb
  • To void; to annul. 

noun
  • The rendering void of a contract or deed; an annulment or abrogation. 

yielding

adj
  • Docile, or inclined to give way to pressure. 

noun
  • A concession. 

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