half-first great-cousin-nephew

Half-first cousin’s grandson.

My half-first great-cousin-nephew is a good person.

double-first great-cousin-nibling

Child of their maternal first cousin’s child with the paternal first cousin’s child or double-first cousin’s grandchild.

My double-first great-cousin-nibling is a good person.

sesqui-cousin-nibling

Sesqui-first cousin’s child.

My sesqui-cousin-nibling is a good person.

seventh-cousin-6X-removed

Seventh-cousin-six-times-removed (7C6R).

My seventh-cousin-6X-removed is a good person.

first great-cousin-niece

First cousin's granddaughter.

My first great-cousin-niece is a good girl.

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.