fest vs fraternity

fest

noun
  • A gathering for a specified reason or occasion. 

  • An event in which the act denoted by the previous noun occurs. 

fraternity

noun
  • A group of people associated for a common purpose. 

  • A social organization of male students at a college or university; usually identified by Greek letters. 

  • The quality of being brothers or brotherly; brotherhood. 

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