joke vs mockery

joke

noun
  • A laughably worthless thing or person; a sham. 

  • An amusing story. 

  • The root cause or main issue, especially an unexpected one 

  • Something that is far easier or far less challenging than expected. 

  • Something said or done for amusement, not in seriousness. 

verb
  • To do or say something for amusement rather than seriously. 

  • To dupe in a friendly manner for amusement; to mess with, play with. 

mockery

noun
  • Something so lacking in necessary qualities as to inspire ridicule; a laughing-stock. 

  • The action of mocking; ridicule, derision. 

  • Mimicry, imitation, now usually in a derogatory sense; a travesty, a ridiculous simulacrum. 

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