cold feet vs terror

cold feet

noun
  • A feeling of nervousness or anxiousness causing one to reconsider a decision about an upcoming event. 

  • Used other than figuratively or idiomatically: see cold, feet. 

terror

noun
  • Intense dread, fright, or fear. 

  • The action or quality of causing dread; terribleness, especially such qualities in narrative fiction. 

  • A night terror. 

  • Terrorism. 

  • Something or someone that causes such fear. 

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