'Uncle' in the Bible

Moses summoned Mishael and Elzaphan, sons of Aaron’s uncle Uzziel, and said to them, “Come here and carry your relatives away from the front of the sanctuary to a place outside the camp.”

If a man sleeps with his aunt, he has shamed his uncle; they will bear their guilt and die childless.

His uncle or cousin may redeem him, or any of his close relatives from his clan may redeem him. If he prospers, he may redeem himself.