half-fourth-cousin

Half-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and one great-great-great-grandparent in common.

My half-fourth-cousin is a good person.

second cousin-pibling

Parent's second cousin.

My second cousin-pibling is a good person.

sesqui-cousin-aunt

Daughter of their grandparent’s half-sibling with the other grandparent’s full sibling.

My sesqui-cousin-aunt is a good person.

first step-cousin-nibling

1. The grandchild of one's parent's stepsibling.
2. The stepgrandchild of one's parent's sibling.
3. The grandchild of one's stepparent's sibling.

My first step-cousin-nibling is a good person.

third-cousin-6X-removed

Third-cousin-six-time-removed (3C6R).

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

half-great-cousin-nibling

Half-first cousin’s grandchild.

My half-great-cousin-nibling is a good person.

first great-great-cousin-aunt

Great-grandparent's female first cousin.

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