Grandma/Grandmother/Granny is "Bestemor" in Norwegian
Grandmother in Norwegian is bestemor, BUT you can also say mormor if she's the mother of your mother, and farmor if she's the mother of your father.
mormor - Mother's mother (maternal grandmother) farmor - Father's mother (paternal grandmother) bestemor - Grandmother (best mother)
Bestemor, Farmor (paternal) and Mormor (maternal)
That depends. There are 3 different ways to say the word "grandmother" in Norwegian. If the grandmother is your mother's mother, it's "mormor". If she's your father's mother, it's "farmor". But the word "bestemor" is probably the most common, and can be used for both your mother's and your father's mother.
Bestemor Farmor (mother of the father) Mormor (mother of the mother)
If you mean grama as in Grandmother then it is "Mormor" if its your mother's mother or "Farmor" if its your father's mother or simply Bestemor which is for both. If its not Grandmother then I have no idea..