joy vs sadden

joy

verb
  • To feel joy, to rejoice. 

noun
  • Anything that causes such a feeling. 

  • Luck or success; a positive outcome. 

  • A feeling of extreme happiness or cheerfulness, especially related to the acquisition or expectation of something good. 

sadden

verb
  • To make sad or unhappy. 

  • To darken a color during dyeing. 

  • To become sad or unhappy. 

  • To render heavy or cohesive. 

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