hellfire vs netherworld

hellfire

noun
  • The fire of Hell. 

  • Fire produced by the Devil, or a similar supernatural creature connected to Hell. 

  • A fire that burns with unusual heat or ferocity. 

adj
  • Of or relating to a violent, apocalyptic and ultimate day of reckoning and judgment; usually characterizing a form of Christian preaching. 

intj
  • hell; damn; blast 

netherworld

noun
  • Specifically, a location of punishment in the afterlife; a hell. 

  • The locale of the spirit world or afterlife, whether deemed to be situated below the world of the living or not. 

  • The place to which one's spirit descends upon death, conceived as below the surface of the earth. 

  • A hidden, shadowy, or sinister subculture, such as that of organized crime. 

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