Daffy vs Sly

Daffy

name

  • A diminutive of the female given name Daffodil 

  • A surname from Welsh, derived from the Welsh equivalent of David. 

  • A diminutive of the female given name Daphne 

Sly

name

  • A diminutive of the male given name Sylvester. 

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