The child of your mother's first cousin is your second cousin.
The child of your mother's second cousin is your third cousin.
It gets more complicated if you are talking about your mother's cousins who are one or more times removed.
The grandchildren of your mother's first cousins are your second cousins, once removed.
The grandchildren of your mother's second cousins are your third cousins, once removed.
You would call them your third cousin or second nice or nephew basically
Second cousin.
They would be your second cousins.
ur second cousin
they are your cousin
cousin
Your mother's first cousin's child is your second cousin. To your children this person is a second cousin once removed.
2nd Cousin
There is 2 answers your mothers brothers children or your dads sister;"s children
your great aunt.
Your first cousin's children are your first cousins, once removed. Your second cousin's children are your second cousins, once removed.
Your cousin. You are that person's second cousin.
The children of your first cousin are your first cousins, once removed.
Your mothers sisters Granddaughter is your second cousin
Your father's sister is your aunt. Her children are your first cousins.
Your parent's first cousin's children are your second cousins. Your children and your second cousin's children are third cousins. Your children and your second cousin - or likewise you and the children of your second cousin - are second cousins, once removed. You and your parent's first cousin are first cousins, once removed.