Usery's definitions

5.5-tuple-3C

5.5-tuple-third-cousin: has among themselves; different two parents, different four grandparents, different eight great-grandparents, eleven great-great-grandparents in common and different five great-great-grandparents.

My 5.5-tuple-3C is a good person.

by Usery May 2, 2021

double-1C2R

Double-first-cousin-twice-removed: child of their great-grandparent’s full sibling with the other great-grandparent’s full sibling or grandchild of their maternal first cousin with the paternal first cousin or double-first cousin’s grandchild or child of their parent's grandparent's full sibling with the other parent’s full sibling's grandchild or child of their parent's parent's sibling's child with the other parent’s sibling's child's child.

My double-1C2R is a good person.

by Usery May 2, 2021

quadruple-2C

Quadruple-second-cousin: has among themselves; different two parents, different four grandparents and eight great-grandparents in common.

My quadruple-2C is a good person.

by Usery May 2, 2021

sibling

Person who, in relation to the other, has a two parents in common.

My sibling is a good person.

by Usery May 3, 2021

half-sister

Female person who, in relation to the other, has a one parent in common and a different one parent.

My half-sister is a good person.

by Usery May 3, 2021

quintuple-3C

Quintuple-third-cousin: has among themselves; different two parents, different four grandparents, different eight great-grandparents, ten great-great-grandparents in common and different six great-great-grandparents.

My quintuple-3C is a good person.

by Usery May 2, 2021

sesqui-cousin

Child of their parent’s half-sibling with the other parent’s full sibling. Has among themselves; different two parents, three grandparents in common and different one grandparent.

My sesqui-cousin is a good person.

by Usery May 2, 2021