fairy vs ugly duckling

fairy

noun
  • An enchantress, or creature of overpowering charm. 

  • A male homosexual, especially one who is effeminate. 

  • A mythical being with magical powers, known in many sizes and descriptions, although often depicted in modern illustrations only as a small sprite with gauze-like wings, and revered in some modern forms of paganism. 

  • A legendary Chinese immortal. 

  • A member of two species of hummingbird in the genus Heliothryx. 

adj
  • Like a fairy; fanciful, whimsical, delicate. 

ugly duckling

noun
  • A young person who is ugly, but who is expected to become beautiful as they mature. 

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