grandmamma

[grand-muh-mah; gran-mah-muh, grand-, gram-]

noun Informal.

Origin of grandmamma

First recorded in 1740–50; grand- + mamma¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

And would they really have died, do you think, grandmamma, if the two men had not overtaken them?
Georgie's Present
Miss Brightwell
Kitty: Grandmamma always said my voice was the most gentle she had ever heard.
The Strand Magazine, Volume V, Issue 25, January 1893
Various
Was not this sort of flattery more dangerous, grandmamma, than the other?
The Fairchild Family
Mary Martha Sherwood
"Now add to that another seventy, and cast it up, my boy," said grandmamma.
The Fairchild Family
Mary Martha Sherwood
One of grandmamma's stories is so interesting that we will relate it in this place.
The Fairchild Family
Mary Martha Sherwood