disconcert vs lose one's rag

disconcert

verb

  • To upset the composure of. 

  • To bring into confusion. 

  • To frustrate, discomfit. 

noun

  • A state of disunion. 

lose one's rag

verb

  • To become angry. 

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