derisory vs mocking

derisory

adj

  • derisive; laughable; ridiculous 

  • Laughably small or inadequate. 

mocking

adj

  • derisive or contemptuous 

  • teasing or taunting 

noun

  • mockery 

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