fancying vs fantasia

fancying

noun
  • Something fancied or imagined. 

fantasia

noun
  • A form of instrumental composition with a free structure and improvisational characteristics; specifically, one combining a number of well-known musical pieces. 

  • A traditional festival of the inhabitants of the Maghreb (in northwest Africa) featuring exhibitions of horsemanship. 

  • Any work which is unstructured or comprises other works of different genres or styles. 

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