irregular-double-fourth-cousin

Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and three great-great-great-grandparents in common.

Irregular-double-fourth-cousin.

double-fourth-cousin

Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and four great-great-great-grandparents in common.

Double-fourth-cousin.

double-fourth-cousin

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

My double-fourth-cousin is a good person.