Your wife's first cousin, once removed. The English language has no shorter term or special name for that person.
Your grandmother's first cousin is first cousin, once removed to your mother or your father, and your first cousin, twice removed.
The child of your first cousin, once removed, is your first cousin, twice removed, if your first cousin once removed is the child of your first cousin. If your first cousin once removed in the first cousin of one of your parents, the child is your second cousin.
The child of your first cousin is your first cousin, once removed. The child of your second cousin is your second cousin, once removed.
The daughter of your first cousin is your first cousin, once removed.
Your first cousin's grandchild is your first cousin twice removed
Your grandfather's first cousin in your first cousin, twice removed.
Your first cousin is your son's first cousin, once removed.
Your first cousin once removed.
Your First Cousin's child is your first cousin, once removed.
The children of your first cousin are your first cousins, once removed.
You and your father's first cousin are first cousins, once removed.
Your uncle's daughter is your first cousin, so herdaughter is your first cousin, once removed.