intermission vs moratorium

intermission

noun
  • A break between two performances or sessions, such as at a concert, play, seminar, or religious assembly. 

moratorium

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

  • A suspension of an ongoing activity. 

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