gram vs gramma

gram

noun
  • 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. 

  • Grandmother. 

gramma

noun
  • A variety of pumpkin, a cultivar of Cucurbita moschata. 

  • Something that is written. 

  • The subjects of reading, writing, and arithmetic. 

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