festivity vs jamboree

festivity

noun
  • A festival or similar celebration. 

  • An experience or expression of celebratory feeling, merriment, gaiety. 

jamboree

noun
  • A boisterous or lavish celebration or party. 

  • In euchre: an undefeatable hand containing the five highest cards. 

  • A large rally of Scouts or Guides. 

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