acquiescence vs impiety

acquiescence

noun
  • Inaction, passivity, or neglect to take legal action when it is called for in order to assert, preserve, or safeguard a right, and which inaction implies the abandonment of said right. 

  • A silent or passive assent or submission, or a submission with apparent content, distinguished from avowed consent on the one hand, and on the other, from opposition or open discontent; quiet satisfaction. 

impiety

noun
  • The lack of respect for a god or something sacred. 

  • An impious act. 

  • The state of being impious. 

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