cancellation vs unwind

cancellation

noun
  • The property of being cancellate. 

  • The act, process, or result of cancelling; as, the cancellation of certain words in a contract, or of the contract itself. 

  • In United States intellectual property law, a proceeding in which an interested party seeks to cancel the registration of a trademark or patent. 

  • The operation of striking out common factors, e.g. in both the dividend and divisor. 

  • A postmark that marks a postage stamp so as to prevent its reuse. 

unwind

noun
  • Any mechanism or operation that unwinds something. 

verb
  • To undo something. 

  • To relax; to chill out; to rest and become relieved of stress 

  • To close out a position, especially a complicated position. 

  • To be or become unwound; to be capable of being unwound or untwisted. 

  • To analyse (a call stack) so as to generate a stack trace etc. 

  • To separate (something that is wound up) 

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