Wiktionary
grandmaw
n. (context US dialect English) grandmother
Usage examples of "grandmaw".
And now Ab Snopes has went off with Grumby to get some more, since your grandmaw has gone out of business, as far as he is concerned.
The gayety of madame appeared to consist in an occasional visit to paw and maw and grandmaw, up the river a few miles, where she was raised.