sesqui-cousin

1- Child of their parent’s full 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- Sesqui-first-cousin.
4- Sesqui-1C.

My sesqui-cousin is a good person.

by Peter12369 October 21, 2021

co-third-cousin-in-law

1- Spouse's third-cousin's spouse.
2- Co-3C-in-law.

My co-third-cousin-in-law is a good person.

by User655 July 25, 2021

third-cousin-in-law

1- Third-cousin's spouse.
2- Spouse's third-cousin.
3- 3C-in-law.

My third-cousin-in-law is a good person.

by User655 July 25, 2021

second-cousin-3X-removed

Second-cousin-thrice-removed (2C3R).

My second-cousin-3X-removed is a good person.

by N8953SW June 26, 2021

sesqui-first-cousin-once-removed

1- Child of their parent’s half-pibling with the other parent’s pibling.
2- Child of their parent’s half-nibling with the other parent’s nibling.
3- Child of their parent’s half-pibling with the other parent’s nibling.
4- Child of their parent’s pibling with the other parent’s half-nibling.
5- Parent's sesqui-first-cousin.
6- Sesqui-first-cousin's child.

My sesqui-first-cousin-once-removed is a good person.

by KOBO8956 September 22, 2021

fourth-cousin

1- Great-great-grandpibling's great-great-grandchild.
2- Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and two great-great-great-grandparents in common.

Fourth-cousin.

by Cerejini May 21, 2024

half-great-cousin-pibling

Grandparent’s half-first cousin.

My half-great-cousin-pibling is a good person.

by Gtopql November 23, 2019