'Fall Away' in the Bible

Then the priest will put the woman under the oath of the curse and will say to the her, "The Lord make you an attested curse among your people, if the Lord makes your thigh fall away and your abdomen swell;

When he has made her drink the water, then, if she has defiled herself and behaved unfaithfully toward her husband, the water that brings a curse will enter her to produce bitterness -- her abdomen will swell, her thigh will fall away, and the woman will become a curse among her people.