The grandchild-in-law of one's grandparent-in-law's sibling.
My second co-cousin-in-law is a good person.
Spouse's step-second-cousin's spouse.
step-co-second-cousin-in-law.
Spouse's second-cousin's spouse.
My co-second-cousin-in-law is a good person.
1- Spouse's second-cousin's spouse.
2- Co-2C-in-law.
My co-second-cousin-in-law is a good person.
Spouse's second-cousin's spouse.
co-second-cousin-in-law.