commiseration vs cruelty

commiseration

noun
  • The act of commiserating; sorrow for the hardships or afflictions of another; pity; compassion. 

cruelty

noun
  • An indifference to suffering or pleasure in inflicting suffering. 

  • A cruel act. 

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