kidding vs mockery

kidding

noun
  • The action of the verb kid. 

  • The act of a goat giving birth. 

mockery

noun
  • The action of mocking; ridicule, derision. 

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

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

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