mercilessness vs pity

mercilessness

noun
  • The property of being merciless. 

pity

verb
  • To make (someone) feel pity; to provoke the sympathy or compassion of. 

  • To feel pity for (someone or something). 

intj
  • Short form of what a pity. 

noun
  • Something regrettable. 

  • A feeling of sympathy at the misfortune or suffering of someone or something. 

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