condescension vs egotism

condescension

noun
  • A patronizing attitude or behavior. 

  • The act of condescending; a manner of behaving in an outwardly polite way that nevertheless implies superiority to another; patronizing courtesy toward inferiors. 

egotism

noun
  • The result or product of being egoistic. 

  • A belief that one is superior to or more important than others. 

  • Egoism (belief that behavior should be directed towards one's self-interest). 

  • A tendency to talk excessively about oneself. 

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