Manny vs Nanna

Manny

name
  • A diminutive of the male given name Emmanuel. 

  • A diminutive of the male given name Manfred. 

  • The city of Manchester, traditionally within the county of Lancashire, England or used more generally referring to the area surrounding, Greater Manchester 

Nanna

name
  • The god of the moon in Sumerian mythology. 

  • A surname from Italian. 

  • A goddess, the wife of Balder. 

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