gorgon vs ugly duckling

gorgon

noun
  • An intimidating, ugly, or disgusting woman; anything hideous or horrid. 

  • A vicious female monster from Greek mythology with sharp fangs and hair of living, venomous snakes. One of the three sisters: Medusa, Stheno and Euryale 

adj
  • Like a gorgon; very ugly or terrifying. 

ugly duckling

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

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