danger vs extremity

danger

noun
  • The stop indication of a signal (usually in the phrase "at danger"). 

  • An instance or cause of likely harm. 

  • Exposure to likely harm; peril. 

extremity

noun
  • An extreme measure. 

  • The most extreme or furthest point of something. 

  • A hand or foot. 

  • A limb (“major appendage of a human or animal such as an arm, leg, or wing”). 

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