4.5-tuple-third-cousin

4.5-tuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and nine great-great-grandparents in common.

My 4.5-tuple-third-cousin is a good person.

by Gerald128 May 15, 2021

sesqui-first cousin-nephew

Sesqui-first cousin’s son.

My sesqui-first cousin-nephew is a good boy.

by Hgcloziw November 23, 2019

first great-great-cousin-nibling

First cousin's great-grandchild.

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

by Hgcloziw November 23, 2019

fourth-cousin

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

My half-fourth-cousin is a good person.

by ABGR June 9, 2021

irregular-decuple-fourth-cousin

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

Irregular-decuple-fourth-cousin.

by Cerejini May 21, 2024

second cousin 4x removed

1. 2nd great-grandfather's second cousin
2. second cousin's great-grandchild

my second cousin 4x removed was a banker

by GasparThalasso June 6, 2025

second great-great-cousin-nibling

Second cousin's great-grandchild.

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

by Gtopql November 23, 2019