mestizo vs metis

mestizo

noun
  • A person of mixed ancestry, especially one of Spanish and Native American heritage. 

  • a person of mixed ancestry, especially one of native Filipino and Spanish or Chinese ancestry, such as that of the Spanish mestizos and Chinese mestizos from the Spanish Colonial Era of the Philippines. 

metis

noun
  • A person of mixed-race ancestry. 

  • A person of one-eighth black ancestry; an octoroon. 

  • Practical intelligence; street smarts. 

adj
  • Of mixed heritage 

  • Of Métis heritage. 

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