To fall away

To lose flesh; to become lean or emaciated; to pine.
To renounce or desert allegiance; to revolt or rebel.
To renounce or desert the faith; to apostatize.
To perish; to vanish; to be lost.- Luke viii. 13.
To decline gradually; to fade; to languish, or become faint.- Addison.

See also: Fall, Fall, Fall, Fall, Fall