Quintuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and ten great-great-grandparents in common.
My quintuple-third-cousin is a good person.
Half-3C:
1- Parent's half-second-cousin's child.
2- Grandparent's half-first-cousin's grandchild.
3- Great-grandparent's half-sibling's great-grandchild.
4- Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and one great-great-grandparent in common.
My half-third-cousin is a good person.
Third-cousin-eleven-removed (3C11R).
My third-cousin-11X-removed is a good person.
Spouse's third-cousin's spouse.
My co-third-cousin-in-law is a good person.
Spouse's third-cousin-once-removed's spouse.
My co-third-cousin-once-removed-in-law is a good person.
Third-cousin-ten-times-removed (3C10R).
My third-cousin-10X-removed is a good person.
6.5-tuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and thirteen great-great-grandparents in common.
My 6.5-tuple-third-cousin is a good person.