affray vs agon

affray

noun
  • A tumultuous assault or quarrel. 

  • The act of suddenly disturbing anyone; an assault or attack. 

  • The fighting of two or more persons, in a public place, to the terror of others. 

agon

noun
  • A struggle or contest; conflict; especially between the protagonist and antagonist in a literary work. 

  • A contest in ancient Greece, as in athletics or music, in which prizes were awarded. 

  • A two-player board game played on a hexagonally-tiled board, popular in Victorian times. 

  • An intellectual conflict or apparent competition of ideas. 

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