mad-dog vs violent

mad-dog

adj
  • Fanatically or irrationally ferocious. 

violent

adj
  • Involving extreme force or motion. 

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

  • Involving physical conflict. 

  • Likely to use physical force. 

  • Intensely vivid. 

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