imagination vs phantasy

imagination

noun
  • A mental image formed by the action of the imagination as a faculty; something imagined. 

  • Particularly, construction of false images; fantasizing. 

  • Creativity; resourcefulness. 

  • The image-making power of the mind; the act of mentally creating or reproducing an object not previously perceived; the ability to create such images. 

phantasy

noun
  • The innate, mental image of an object; the link between instinct and reality. 

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