The daughter-in-law of one's spouse's sibling.
My co-niece-in-law is a good person.
What some southern kids called Salmon Croquettes.
Mama fixed some salmon co-cakes today.
Spouse's half-sibling's spouse.
My half-co-sibling-in-law is a good person.
Spouse's half-sibling's spouse.
half-co-sibling-in-law.