disconcert vs lose one's mind

disconcert

verb
  • To upset the composure of. 

  • To bring into confusion. 

  • To frustrate, discomfit. 

noun
  • A state of disunion. 

lose one's mind

verb
  • To become frustrated, angry. 

  • To become crazy, insane. 

How often have the words disconcert and lose one's mind occurred in a corpus of books? (source: Google Ngram Viewer )