dissimilitude vs diversity

dissimilitude

noun
  • The quality of being diverse or different; lack of resemblance. 

diversity

noun
  • The quality of being diverse or different; difference or unlikeness. 

  • Equal-opportunity inclusion. 

  • A variety; diverse types or examples. 

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