Mum's side were granny and papa
Dad's side were granny and grandpa.
Have kept that with our grandkids.
My hubby wanted to be called grandad, but the eldest kept calling him what sounded like 'curtains'. So I got my way and got changed to papa.
Dads - Mamma and Grandad
I was also lucky enough to have two Great grandmothers until my late teens, Oldest was 101 when she passed away,
They where Grandma and Mamma H******
the great grandmothers were grandma my mums parents were Nan and Grandad my dads mother died before I was born his dad was Grandad Bu66er its a long story...