brutality vs vernacularity

brutality

noun
  • A cruel or savage act. 

  • The state of being brutal. 

  • The use of excessive physical force, often in the form of violence. 

vernacularity

noun
  • A vernacular utterance. 

  • The quality of being vernacular. 

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