festivity vs fete

festivity

noun
  • A festival or similar celebration. 

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

fete

noun
  • A feast, celebration or carnival. 

  • A festival open to the public, the proceeds from which are often given to charity. 

verb
  • To celebrate (a person). 

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