cordiality vs lightliness

cordiality

noun
  • The quality of being cordial. 

  • A friendly utterance. 

  • to exchange cordialities with people 

lightliness

noun
  • The quality or condition of one who acts lightly; ease; facility. 

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