agony vs overextension

agony

noun
  • Extreme pain. 

  • Violent contest or striving. 

  • Paroxysm of joy; keen emotion. 

  • The sufferings of Jesus Christ in the garden of Gethsemane. 

  • The last struggle of life; death struggle. 

overextension

noun
  • The state or quality of being overextended; extension beyond normal, correct, or appropriate bounds or limits. 

  • Application of a term to too many referents, as for example when a child uses cat to refer to all animals. 

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