7.5-tuple-third-cousin 

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

My 7.5-tuple-third-cousin is a good person.

7.5-tuple-third-cousin by Gerald128 May 15, 2021

octuple-third-cousin 

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

My octuple-third-cousin is a good person.

octuple-third-cousin by Gerald128 May 15, 2021

sesqui-second-cousin 

Sesqui-2C:
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.

sesqui-second-cousin by Gerald128 May 17, 2021

sesqui-third-cousin 

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.

sesqui-third-cousin by Gerald128 May 17, 2021

double-third-cousin

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

My double-third-cousin is a good person.

double-third-cousin by Gerald128 May 17, 2021

half-fourth-cousin 

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

My half-fourth-cousin is a good person.

half-fourth-cousin by ABGR June 9, 2021

sesqui-fourth-cousin

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

My sesqui-fourth-cousin is a good person.

sesqui-fourth-cousin by ABGR June 9, 2021