mortiferous vs violent

mortiferous

adj
  • Causing physical death; deadly, fatal, lethal. 

violent

adj
  • Produced or effected by force; not spontaneous; unnatural. 

  • Involving extreme force or motion. 

  • Involving physical conflict. 

  • Likely to use physical force. 

  • Intensely vivid. 

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