disconcert vs madden

disconcert

verb
  • To upset the composure of. 

  • To bring into confusion. 

  • To frustrate, discomfit. 

noun
  • A state of disunion. 

madden

verb
  • To make angry. 

  • To make insane; to inflame with passion. 

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