Your grandfather's brother is your Great Uncle.
Your grandfather's uncle is your great great uncle. Your grandfather's brother would be your great uncle
The relationship of the sibling of your sister-in-law or brother-in-law to you does not have a name in English. You could call them your brother- or sister-in-law if you want, or you can call them the brother or sister of your brother- or sister-in-law.
If your aunt is the sister of one of your parents, her husband's brother (her brother-in-law) is not related to you. If your aunt is the wife of a brother of one of your parents, then her husband's brother (her brother-in-law) is either your father or another one of your parents' brothers.
He would be your great-great uncle.
little brother
He would be your great great uncle, but you could call him whatever endearing name you both prefer. my great grandfathers brother or my great uncle
Your grandfather's brother is your great uncle.
Your grandfather's uncle is your great great uncle. Your grandfather's brother would be your great uncle
You would be second cousins.
Your grandfathers brother to you is your Great Uncle!
Your Grand Uncle(great uncle) would be your grandmother or grandfathers brother.
You would call your husband's younger brother a brother-in-law.
Would you call your brother god?
Your brother's daughter would be your niece. So she would call you Aunt/Uncle
할아버지 (Hara buhjee)
Your wife's brother would be called "brother-in-law".
He would be your brother-in-law.