frenzy vs nightmare

frenzy

noun
  • A state of wild activity or panic. 

  • A violent agitation of the mind approaching madness; rage. 

verb
  • To render frantic. 

  • To exhibit a frenzy, such as a feeding frenzy. 

nightmare

noun
  • Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure. 

  • A very bad or frightening dream. 

  • A feeling of extreme anxiety or suffocation experienced during sleep; Sleep paralysis. 

verb
  • To have a nightmare. 

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