disconcert vs spit feathers

disconcert

verb
  • To upset the composure of. 

  • To bring into confusion. 

  • To frustrate, discomfit. 

noun
  • A state of disunion. 

spit feathers

verb
  • To feel very angry; to sputter angrily. 

  • To feel very thirsty. 

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