nightmare vs topsy-turvy

nightmare

verb
  • To have a 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. 

topsy-turvy

verb
  • To throw into chaos or disorder; to upset. 

  • To turn topsy-turvy or upside down; to invert. 

adv
  • Backwards or upside down; also, having been overturned or upset. 

  • Not in the natural order of things; in a disorderly manner; chaotically. 

adj
  • Chaotic; disorderly. 

  • Backwards or upside down. 

noun
  • An act of turning something backwards or upside down, or the situation that something is in after this has happened. 

  • A situation where the natural order of things has been upset. 

  • Chaos, confusion, disorder. 

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