derogate vs mistake

derogate

verb
  • To detract from (something); to disparage, belittle. 

  • To remove a part, to detract from (a quality of excellence, authority etc.). 

  • To act in a manner below oneself; to debase oneself. 

  • To take away (something from something else) in a way which leaves it lessened. 

mistake

verb
  • To understand wrongly, taking one thing or person for another. 

noun
  • An error; a blunder. 

  • A pitch which was intended to be pitched in a hard-to-hit location, but instead ends up in an easy-to-hit place. 

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