cousin-in-law

First cousin's spouse or spouse's first cousin.

My cousin-in-law is a educated person.

cousin-in-law

1- Cousin's spouse.
2- Spouse's cousin.

cousin-in-law.

7.5-tuple-third-cousin

7.5-tuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and fifteen great-great-grandparents in common.

My 7.5-tuple-third-cousin is a good person.

sesqua-second-cousin

Sesqua-2C:
Person who, in relation to the other person, has zero parents, zero grandparents and seven great-grandparents in common.

My sesqua-second-cousin is a good person.

first cousin-uncle-in-law

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.

co-first-cousin-once-removed-in-law

Spouse's first-cousin-once-removed's spouse.

My co-first-cousin-once-removed-in-law is a good person.

co-first-cousin-once-removed-in-law

Spouse's first-cousin-once-removed's spouse.

co-first-cousin-once-removed-in-law.