casteism vs racist

casteism

noun
  • discrimination based on a person's caste 

racist

noun
  • A person who believes in or supports racism; a person who believes that a particular race is superior to others, and who discriminates against other races. 

adj
  • Discriminatory. 

  • Constituting, exhibiting, advocating, or pertaining to racism. 

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