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.
by ABGR June 9, 2021
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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-first-cousin.
5- Double-half-1C.
My double-half-cousin is a good person.
by Peter12369 October 21, 2021
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1- Child of parent's maternal half-sibling and of parent's paternal half-sibling at the same time.
2- Child of parent's half-sibling and of other parent's half-sibling at the same time.
3- Double-half-pibling's child / Two parents's half-nibling.
4- 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).
5- Double-half-first-cousin.
6- Double-half-1C.
My double-half-cousin is a good person.
by TAYLORGLOSS October 22, 2021
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