mockery vs piety

mockery

noun
  • The action of mocking; ridicule, derision. 

  • Mimicry, imitation, now usually in a derogatory sense; a travesty, a ridiculous simulacrum. 

  • Something so lacking in necessary qualities as to inspire ridicule; a laughing-stock. 

piety

noun
  • Reverence and devotion to God. 

  • A devout act or thought. 

  • A belief that is accepted unthinkingly and with undue reverence. 

  • Similar reverence to one's parents and family or to one's country. 

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