derogate vs shit talk

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. 

shit talk

verb
  • Synonym of talk shit 

noun
  • Derogatory speech regarding someone or something. 

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