gelastic vs laffer

gelastic

adj
  • Pertaining to laughter, used in laughing, or to be the subject of laughter. 

  • Relating to a particularly severe form of epileptic fit, in which there is a sudden burst of energy. 

laffer

noun
  • A comedy. 

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