hajduk vs rioter

hajduk

noun
  • An outlaw, highwayman, or freedom fighter in the Balkans. 

  • A halberdier of a Hungarian noble. 

  • An attendant in German or Hungarian courts. 

rioter

noun
  • One who riots; part of the unruly violent crowd causing a riot. 

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