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

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

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

Eighth-cousin-five-times-removed (8C5R).
My eighth-cousin-5X-removed is a good person.
by N8953SW June 26, 2021

My sesqui-cousin-niece is a good person.
by Hgcloziw November 23, 2019

My sesqui-first cousin-aunt is a good person.
by Hgcloziw November 23, 2019

My half-great-cousin-nibling is a good person.
by Gtopql November 23, 2019
