derogative vs malignant

derogative

adj
  • Of or pertaining to derogation; that derogates 

  • Disparaging; tending or intending to be belittling. 

noun
  • A derogatory word or word-form. 

malignant

adj
  • Harmful, malevolent, injurious. 

  • Tending to produce death; threatening a fatal issue. 

noun
  • A deviant; a person who is hostile or destructive to society. 

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