laugher vs prosperity

laugher

noun
  • One who laughs. 

  • A game in which an opponent is defeated by a sizable margin; a blowout. 

  • A variety of the domestic pigeon. 

prosperity

noun
  • The condition of being prosperous, of having good fortune 

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