Sesqui-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and three great-great-grandparents in common.
My sesqui-third-cousin is a good person.
by Gerald128 May 17, 2021
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.
My quadruple-third-cousin is a good person.
by Gerald128 May 15, 2021
Sesqua-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and seven great-great-grandparents in common.
My sesqua-third-cousin is a good person.
by Gerald128 May 15, 2021
Third-cousin-seven-times-removed (3C7R).
My third-cousin-7X-removed is a good person.
by N8953SW June 27, 2021
Sextuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and twelve great-great-grandparents in common.
My sextuple-third-cousin is a good person.
by Gerald128 May 15, 2021
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 26, 2021