extinguishing vs incompletion

extinguishing

noun
  • The process by which something is extinguished. 

incompletion

noun
  • Something which is not completed. 

  • A forward pass which is not caught inbounds by the intended receiver. 

  • The state or quality of not being complete. 

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