dismal vs three-dog night

dismal

adj
  • Causing despair; gloomy and bleak. 

  • Depressing, dreary, cheerless. 

  • Disastrous, calamitous 

  • Disappointingly inadequate. 

three-dog night

How often have the words dismal and three-dog night occurred in a corpus of books? (source: Google Ngram Viewer )