Your grandfather's brother is your great uncle. The wife of your great uncle is your great aunt.
I think your step grandma.
Two people whose grandfathers were brothers are second cousins to each other.
In Marathi, brother's wife is called 'vayni'
Your brother's wife is your sister-in-law.
Yes. But it is also called the Six Grandfathers. For back in the olden days, it was called the Six Grandfathers to the Lakota Sioux.
That would be your great-aunt, by marriage.
He would be your great-great uncle.
What is your great-great-great grand nephew?!
She would be your aunt. The neice's kids will be your second cousins.
if your wife's brother is your brother in law, his wife is your sister in law
because it was her grandfathers name
The possessive form of the plural noun grandfathers is grandfathers'.example: Both of my grandfathers' names are George.