hush vs terror

hush

verb
  • To make quiet. 

  • To appease; to allay; to soothe. 

  • To become quiet. 

  • To clear off soil and other materials overlying the bedrock. 

noun
  • A mining method using water 

  • A silence, especially after some noise 

terror

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

  • Intense dread, fright, or fear. 

  • A night terror. 

  • Terrorism. 

  • Something or someone that causes such fear. 

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