Cozbi

The name of the woman from Midyan who was killed was Kozbi the daughter of Tzur, and he was head of the people in one of the clans of Midyan.

because they are treating you as enemies by the trickery they used to deceive you in the P'or incident and in the affair of their sister Kozbi, the daughter of the leader from Midyan, the woman who was killed on the day of the plague in the P'or incident."