despondency vs doom and gloom

despondency

noun
  • A feeling of depression or disheartenment. 

  • The loss of hope or confidence; despair or dejection. 

doom and gloom

noun
  • Something considered indicative of feelings of pessimism and despair. 

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