barbarianism vs murderousness

barbarianism

noun
  • A primitive or simplistic ethos or societal condition; barbarism. 

  • Behaviour appropriate to a barbarian, that is uncivilized, brutal, or crude. 

murderousness

noun
  • The state or condition of being murderous. 

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