addition vs excision

addition

noun
  • A dot at the right side of a note as an indication that its sound is to be lengthened one half. 

  • The act of adding anything. 

  • The arithmetic operation of adding. 

  • Anything that is added. 

  • A title annexed to a person's name to identify him or her more precisely. 

  • Something added to a coat of arms, as a mark of honour. 

excision

noun
  • The removal of some text during editing. 

  • The removal of a gene from a section of genetic material. 

  • The removal of something (a tumor or body part) by cutting. 

  • The fact that, under certain hypotheses, the homology of a space relative to a subspace is unchanged by the identification of a subspace of the latter to a point. 

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