That would probably be your cousin-in-law.
He is your cousin ny marriage once removed . Just call him by his name.
The brother of your wife's cousin is also her cousin. You can call either of them "my wife's cousin." You are not related to them.
In general, your cousin's wife's cousins are not related to you.
Your wife's brother is your brother-in-law.
My wifes brother in law!
would it be a brother in law? not sure about this one! Is it your husband/wifes daughters brother?
would it be a brother in law? not sure about this one! Is it your husband/wifes daughters brother?
Your grandmother's brother's wife is your great aunt.
The children of your grandfather's brother are your first cousins, once removed. You can also call them by their names.
Your brother's wife's cousins are not related to you and the English language has no special term for that. The same applies to the cousins of a stepbrother's wife.
While generally referred to as a Sister-in-law, there is no relationship.
Any children of your parents' siblings are your cousins.
If you are close to your step-brother, or to his wife, you can call her your sister-in-law. If you are not close, you can call her your "step-brother's wife."
All of your cousins are also cousins of your brother.
Your grandfather's brother's grandson is your great uncle's grandson. The grandchildren of great aunts and great uncles are your second cousins.