armistice vs moratorium

armistice

noun
  • A (short) cessation of combat; a cease-fire, a truce. 

  • A formal agreement, especially between nations, to end combat. 

moratorium

noun
  • A suspension of an ongoing activity. 

  • An authorization to a debtor, permitting temporary suspension of payments. 

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