hussar vs ranker

hussar

noun
  • A member of the light cavalry of any of several European armies. 

  • A member of the national cavalry of Hungary, Croatia and Poland. 

ranker

noun
  • A common soldier. 

  • One who ranks things, or arranges them in ranks. 

  • A kind of soil developed over non-calcareous material, usually rock. 

  • One with a specified rank. 

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