Don't call her "Nana" or "Grandma"

Here is the mother of the father of Stella, with Stella. Wouldn't it just be easier to say "Nana" or "Grandma?" Well, no. So, the search is on for a replacement name. I told my mother that the issue is not too crucial because Stella doesn't speak English....yet. She is less than a week old, so I think the issue will resolve itself ultimately.