Grandma or Gran
The French word for grandma is "grand-mère."
The Haitian Creole word for grandma is "grann".
The word for grandma in Russian is "бабушка" (babushka).
Yes, the word grandma is a compound word made up of 'grand' and 'ma'.
The Japanese word for 'Grandma' is Obaasan. おばあさん
Avó or avozinha
Two words. Great grandma.
Spelling of Grandma in Burns Malheur Paiute: Hutsi'i