half-caste vs mixed

half-caste

adj
  • Of mixed racial descent. 

noun
  • A person of mixed racial descent. 

mixed

adj
  • Stemming from two or more races or breeds 

  • Including both male(s) and female(s). 

  • Not completely pure, tainted or adulterated. 

  • Having two or more separate aspects. 

How often have the words half-caste and mixed occurred in a corpus of books? (source: Google Ngram Viewer )