cordiality vs kindness

cordiality

noun
  • A friendly utterance. 

  • to exchange cordialities with people 

  • The quality of being cordial. 

kindness

noun
  • The state of being kind. 

  • An instance of kind or charitable behaviour. 

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