bug-a-boo vs fey

bug-a-boo

noun
  • A mythical, nocturnal creature; a hobgoblin. 

  • Any imagined fear or threat, or a fear presumed larger than it really is. 

fey

noun
  • Fairy folk collectively. 

adj
  • Overrefined, affected. 

  • Magical or fairylike. 

  • Strange or otherworldly. 

  • Spellbound. 

  • Possessing second sight, clairvoyance, or clairaudience. 

How often have the words bug-a-boo and fey occurred in a corpus of books? (source: Google Ngram Viewer )