duke out vs tumult

duke out

verb
  • To fight, especially with fists. 

tumult

noun
  • Violent commotion or agitation, often with confusion of sounds. 

  • Confused, agitated noise as made by a crowd. 

  • A riot or uprising. 

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