gaucho vs ranchero

gaucho

noun
  • A cowboy of the South American pampas. 

  • A proposed currency intended to be used by Argentina and Brazil to make interregional payments. 

ranchero

noun
  • A ranch or rancho owner 

  • a ranch or rancho worker 

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