hussar vs pongo

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. 

pongo

noun
  • A soldier. 

  • A lazy, good for nothing person. 

  • A canyon or gorge in South America especially cutting through a ridge or mountain range. 

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