desperado vs mugger

desperado

noun
  • A person in desperate circumstances or who is at the point of desperation, such as a down-and-outer, an addict, etc. 

  • A person who is desperately in love or is desperate for a romantic or sexual relationship. 

  • A bold outlaw, especially one from southern portions of the Wild West. 

  • A piece that seems determined to give itself up, typically to bring about stalemate or perpetual check. 

mugger

noun
  • A person who assaults and robs others, especially in a public place. 

  • A large crocodile, Crocodylus palustris, of southwest Asia, having a very broad wrinkled snout. 

  • A person who makes exaggerated faces, as a performance; a gurner. 

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