kindness vs malapropism

kindness

noun
  • The state of being kind. 

  • An instance of kind or charitable behaviour. 

malapropism

noun
  • The blundering use of an absurdly inappropriate word or expression in place of a similar-sounding one. 

  • An instance of this; malaprop. 

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