half blood vs metis

half blood

noun
  • A person whose father and mother are of different races; a half-breed 

  • A person who shares one parent with another; a half-sibling. 

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 half blood and metis occurred in a corpus of books? (source: Google Ngram Viewer )