derision vs optimism

derision

noun
  • Something to be derided; a laughing stock. 

  • Act of treating with disdain. 

optimism

noun
  • the doctrine that this world is the best of all possible worlds 

  • a tendency to expect the best, or at least, a favourable outcome 

  • the belief that good will eventually triumph over evil 

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