prettiful vs stunning

prettiful

adj
  • pretty, beautiful, cute 

stunning

adj
  • Exceptionally beautiful or attractive. 

  • Having an effect that stuns. 

  • Amazing; wonderfully good. 

noun
  • The act by which a person or animal is physically stunned. 

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