disconcert vs hearten

disconcert

verb
  • To upset the composure of. 

  • To bring into confusion. 

  • To frustrate, discomfit. 

noun
  • A state of disunion. 

hearten

verb
  • To give heart to; to encourage, urge on, cheer, give confidence to. 

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