derogative vs insolent

derogative

adj
  • Disparaging; tending or intending to be belittling. 

  • Of or pertaining to derogation; that derogates 

noun
  • A derogatory word or word-form. 

insolent

adj
  • Insulting in manner or words, particularly in an arrogant or insubordinate manner. 

  • Rude. 

noun
  • A person who is insolent. 

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