Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and twenty-two great-great-great-grandparents in common.
Undecuple-fourth-cousin.
by Cerejini May 21, 2024

Spouse's fourth-cousin's spouse.
My co-fourth-cousin-in-law is a good person.
by JAMP12 September 21, 2021

Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and twenty-three great-great-great-grandparents in common.
Irregular-duodecuple-fourth-cousin.
by Cerejini May 21, 2024

12.5-tuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and twenty-five great-great-great-grandparents in common.
My 12.5-tuple-fourth-cousin is a good person.
by ABGR June 9, 2021

Sesquaple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and seven great-great-great-grandparents in common.
My sesquaple-fourth-cousin is a good person.
by ZYRB3256 February 21, 2022

Sexdecuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and thirty-two great-great-great-grandparents in common.
My sexdecuple-fourth-cousin is a good person.
by ABGR June 9, 2021

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.
by ABGR June 9, 2021
