imperturbability vs violence

imperturbability

noun
  • A state of calm, unruffled self-assurance; aplomb, composure. 

violence

verb
  • To subject to violence. 

noun
  • Extreme force. 

  • Injustice, wrong. 

  • Widespread fighting. 

  • Physical action which causes destruction, harm, pain, or suffering. 

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