combatant vs fistfighter

combatant

noun
  • A person engaged in combat, often armed. 

adj
  • Involving combat. 

  • Contending; disposed to contend. 

fistfighter

noun
  • One who fights using the fists. 

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