fistfighter vs gladiator

fistfighter

noun
  • One who fights using the fists. 

gladiator

noun
  • A professional boxer. 

  • A disputant in a public controversy or debate. 

  • A person (professional or slave) who entertained the public by engaging in mortal combat with another, or with a wild animal. 

verb
  • To act aggressively toward others. 

  • To fight as entertainment for others. 

  • To debate or argue. 

  • To compete in a public contest. 

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