Mountain vs Terror

Mountain

name
  • The Montagnard party in the time of the French Revolution. 

  • A surname. 

  • A village in North Dakota, United States. 

  • A town in Wisconsin, United States. 

noun
  • a steam locomotive of the 4-8-2 wheel arrangement. 

Terror

name
  • The Reign of Terror during the French Revolution. 

  • Any specific one of several historical reigns of terror. 

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