Usery's definitions
Double-third-cousin: has among themselves; different two parents, different four grandparents, different eight great-grandparents, four great-great-grandparents in common and different twelve great-great-grandparents.
My double-3C is a good person.
by Usery May 2, 2021

Triple-second-cousin: has among themselves; different two parents, different four grandparents, six great-grandparents in common and different two great-grandparents.
My triple-2C is a good person.
by Usery May 2, 2021

6.5-tuple-third-cousin: has among themselves; different two parents, different four grandparents, different eight great-grandparents, thirteen great-great-grandparents in common and different three great-great-grandparents.
My 6.5-tuple-3C is a good person.
by Usery May 2, 2021

7.5-tuple-third-cousin: has among themselves; different two parents, different four grandparents, different eight great-grandparents, fifteen great-great-grandparents in common and different one great-great-grandparent.
My 7.5-tuple-3C is a good person.
by Usery May 2, 2021

by Usery May 3, 2021

by Usery May 3, 2021

Parent's sibling's child; the relative who has with the other person only two grandparents (maternal ou paternal) in common, but parents are different.
My cousin is a good person.
by Usery May 2, 2021
