first-cousin-once-removed

1- Parent's cousin.
2- Cousin's child.

First-cousin-once-removed.

sesquiple-first-cousin

1- Child of their parent’s sibling with the other parent’s half-sibling.
2- Person who, in relation to the other person, has zero parents and three grandparents in common.
3- Sesquiple-cousin.
4- Sesquiple-1C.
5- Sesqui-first-cousin.
6- Sesqui-1C.

My sesquiple-first-cousin is a good person.

half-first great-cousin-aunt

Grandparent’s female half-first cousin.

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

sesqui-first cousin-niece

Sesqui-first cousin’s daughter.

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

first co-cousin-uncle-in-law

The son-in-law of one's grandparent-in-law's sibling.

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

first great-great-cousin-uncle

Great-grandparent's male first cousin.

My first great-great-cousin-uncle is a good person.

first-cousin-7X-removed

First-cousin-seven-times-removed (1C7R).

My first-cousin-7X-removed is a good person.