co-cousin-in-law

Spouse's cousin's spouse.
My co-cousin-in-law is a good person.
by Gerald128 April 06, 2021
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sesqua-third-cousin

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
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great-great-grandnibling

I have 212 great-great-grandniblings (106 great-great-grandnieces and 106 great-great-grandnephews).
by Gerald128 April 06, 2021
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granduncle-in-law

1- Grandaunt's husband.
2- Spouse's granduncle.
My granduncle-in-law is a good person.
by Gerald128 April 07, 2021
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first-cousin

Cousin or 1C:
1- Parent's full sibling's child.
2- Person who, in relation to the other person, has zero parents and two grandparents (maternal or paternal) in common.
My first-cousin is a good person.
by Gerald128 May 15, 2021
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grandnephew-in-law

1- Grandniece's husband.
2- Spouse's grandnephew.
My grandnephew-in-law is a good person.
by Gerald128 April 07, 2021
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1C2R

My 1C2R is a good person.
by Gerald128 April 06, 2021
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