Leviticus 16:7-10

Aaron : a son of Amram; brother of Moses,son of Amram (Kohath Levi); patriarch of Israel's priests,the clan or priestly line founded by Aaron

Azazel : a desolate region; the scapegoat which was taken there (IBD)

azazel : a desolate region; the scapegoat which was taken there (IBD)