doom vs pale rider

doom

noun
  • Death. 

  • An undesirable fate; an impending severe occurrence or danger that seems inevitable. 

  • The Last Judgment; or, an artistic representation thereof. 

  • Destiny, especially terrible. 

  • A feeling of danger, impending danger, darkness, or despair. 

verb
  • To destine; to fix irrevocably the ill fate of. 

  • To pronounce judgment or sentence on; to condemn. 

pale rider

noun
  • Death, the Grim Reaper or angel of death; and one of the Four Horsemen of the Apocalypse. 

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