Nelly vs Tabby

Nelly

name
  • A spelling variant of Nellie, a diminutive of the female given names Eleanor, Helen, and Chanel. 

  • One of the Frazier Islands where nellies breed. 

  • A surname. 

Tabby

name
  • A diminutive of the female given name Tabitha. 

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