oneiric vs phantasmagoric

oneiric

adj
  • Of or pertaining to dreams. 

  • Resembling a dream; dreamlike. 

phantasmagoric

adj
  • Characterized by or pertaining to a dreamlike blurring of real and imaginary elements. 

  • Characterized by or pertaining to rapid changes in light intensity and colour. 

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