What do you call elder borthers daughter?
What you call your father's elder brother's daughter?
Any children of your parents' siblings are your cousins.
What is the relationship name of elder sister's daughter?
What do you call your elder sister's son?
In the English language, your sister's son is your nephew, regardless of whether your sister is older or younger than you are. All children of your siblings are either your nephew (if a boy) or a y...
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Can a sister in law's daughter have sex with her elder sister's husband?
Assuming that the new parent and his cousin are first-cousins, the newborn daughter is the cousin's first-cousin once removed.