Donna vs Sultana

Donna

name
  • A city in Hidalgo County, Texas, United States, named after postmistress Donna Fletcher. 

  • A surname from Italian. 

  • A female given name from Italian. 

Sultana

name
  • A census-designated place in Tulare County, California, United States. 

  • A surname. 

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