extroversion vs warm-heartedness

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. 

warm-heartedness

noun
  • The quality of being warm-hearted. 

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