gram vs nanna

gram

noun
  • Grandmother. 

  • The seeds of these plants. 

  • A unit of mass equal to one-thousandth of a kilogram. Symbol: g. 

  • A leguminous plant grown for its seeds, especially the chickpea. 

nanna

noun
  • grandmother 

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