second cousin-in-law

1. The spouse of one's grandparent's sibling's grandchild.
2. The grandchild of one's grandparent-in-law's sibling.

My second cousin-in-law is a good person.

second-cousin-in-law

1- Second-cousin's spouse.
2- Spouse's second-cousin.
3- 2C-in-law.

My second-cousin-in-law is a good person.

second-cousin-in-law

1- Second-cousin's spouse.
2- Spouse's second-cousin.

second-cousin-in-law.

8.5-tuple-fourth-cousin

8.5-tuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and seventeen great-great-great-grandparents in common.

My 8.5-tuple-fourth-cousin is a good person.

first co-cousin-niece-in-law

The granddaughter-in-law of one's parent-in-law's sibling.

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

first-cousin-1X-removed

First-cousin-once-removed (1C1R).

My first-cousin-1X-removed is a good person.

co-second-cousin-once-removed-in-law

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

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