derogate vs nonplus

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. 

nonplus

verb
  • To bewilder or perplex (someone); to confound, to flummox. 

noun
  • A state of bewilderment or perplexity. 

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