affaire d'honneur vs shootout

affaire d'honneur

noun
  • A duel. 

shootout

noun
  • A penalty shootout. 

  • A series of penalty shots during which a tied game is resolved. 

  • A multitable poker tournament in which only the last player on a table goes on to the next. 

  • A match in which both teams score highly. 

  • A decisive battle, especially a gunfight. 

How often have the words affaire d'honneur and shootout occurred in a corpus of books? (source: Google Ngram Viewer )