cancellation vs ending

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. 

ending

noun
  • A termination or conclusion. 

  • The last part of something. 

  • The last morpheme of a word, added to some base to make an inflected form (such as -s in "dogs"). 

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