jeer vs laugh at

jeer

verb
  • To utter sarcastic or mocking comments; to speak with mockery or derision; to use taunting language. 

noun
  • An assemblage or combination of tackles, for hoisting or lowering the yards of a ship. 

  • A mocking remark or reflection. 

  • A gear; a tackle. 

laugh at

verb
  • To scorn or tease; to evince contempt or pity for someone, usually contrasted with laugh with. 

  • Used other than figuratively or idiomatically: see laugh, at. 

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