First cousin's spouse or spouse's first cousin.
My cousin-in-law is a educated person.
1. The husband of one's grandparent's sibling's daughter.
2. The son of one's grandparent-in-law's sibling.
My first cousin-uncle-in-law is a good person.
Spouse's first-cousin-once-removed's spouse.
My co-first-cousin-once-removed-in-law is a good person.
Spouse's first-cousin-once-removed's spouse.
co-first-cousin-once-removed-in-law.
The daughter-in-law of one's grandparent-in-law's sibling.
My co-cousin-aunt-in-law is a good person.
Spouse's second-cousin-twice-removed's spouse.
My co-second-cousin-twice-removed-in-law is a good person.