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That is what my grandchildren would call me Nona (pronounced No-Nah) and yes, I do believe it is the Italian word for grandmother. The children called their other grandmother Na-Na. As it became confusing, they now refer to me as Mormor (Norwegian, which is my cultural heritage, for grandmother).

Wow thank you for clarifying that and now I learned another word which is Mormor.

yes, that is nordic for grandmother.