Quadruple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and eight great-great-grandparents in common.
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and eight great-great-grandparents in common.
My quadruple-third-cousin is a good person.
by Gerald128 May 15, 2021

1- Child of parent’s half-sister and of other parent’s half-brother at the same time.
2- Double-half-pibling's child / Two parents's half-nibling.
3- Person who, in relation to the other person, has zero parents and two grandparents
on the same side (maternal or paternal) or two grandparents from different sides (one maternal grandparent and one paternal grandparent).
4-Double-half-cousin.
5- Double-half-1C.
2- Double-half-pibling's child / Two parents's half-nibling.
3- Person who, in relation to the other person, has zero parents and two grandparents
on the same side (maternal or paternal) or two grandparents from different sides (one maternal grandparent and one paternal grandparent).
4-Double-half-cousin.
5- Double-half-1C.
My double-half-first-cousin is a good person.
by Peter12369 October 21, 2021

1- Child of their parent’s sibling with the other parent’s half-sibling.
2- Person who, in relation to the other person, has zero parents and three grandparents in common.
3- Sesquiple-cousin.
4- Sesquiple-1C.
5- Sesqui-first-cousin.
6- Sesqui-1C.
2- Person who, in relation to the other person, has zero parents and three grandparents in common.
3- Sesquiple-cousin.
4- Sesquiple-1C.
5- Sesqui-first-cousin.
6- Sesqui-1C.
My sesquiple-first-cousin is a good person.
by ZYRB3256 February 21, 2022

by jeffcoco1 June 18, 2023

Sesqui-2C:
Person who, in relation to the other person, has zero parents, zero grandparents and three great-grandparents in common.
Person who, in relation to the other person, has zero parents, zero grandparents and three great-grandparents in common.
My sesqui-second-cousin is a good person.
by Gerald128 May 17, 2021

Sixth-cousin-once-removed (6C1R).
My sixth-cousin-1X-removed is a good person.
by N8953SW June 26, 2021

First cousin's great-grandchild.
My great-great-cousin-nibling is a good person.
by Hgcloziw November 23, 2019
