cordiality vs extroversion

cordiality

noun
  • The quality of being cordial. 

  • A friendly utterance. 

  • to exchange cordialities with people 

extroversion

noun
  • A personality orientation towards others and things outside oneself; behavior expressing such orientation. 

  • The condition of being inside out, especially in relation to the bladder. 

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