Daughter of their great-grandparent’s full sibling with the other great-grandparent’s full sibling.
My double-first great-cousin-aunt is a good person.
by Hgcloziw November 23, 2019
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1. The sister of one's stepgrandparent.
2. The stepsister of one's grandparent.
My step-great-aunt is a good person.
by Elivaldeq November 24, 2019
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