bluish vs metis

bluish

adj
  • Having a tint or hue similar to the colour blue. 

  • Somewhat depressed; sad. 

metis

adj
  • Of mixed heritage 

  • Of Métis heritage. 

noun
  • A person of mixed-race ancestry. 

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

  • Practical intelligence; street smarts. 

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