half-caste vs metis

half-caste

noun
  • A person of mixed racial descent. 

adj
  • Of mixed racial descent. 

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