peril vs possibility

peril

noun
  • Something that causes, contains, or presents danger. 

  • A situation of serious and immediate danger. 

  • An event which causes a loss, or the risk of a specific such event. 

verb
  • To cause to be in danger; to imperil; to risk. 

possibility

noun
  • A thing possible; that which may take place or come into being. 

  • The quality of being possible. 

  • An option or choice, usually used in context with future events. 

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