Correggio has made his memory immortal by the strength he has given
to his figures, and by sweetening his lights and shadows, and
melting them into each other.
Dryden.
6. To make pure and salubrious by destroying noxious matter; as, to
sweeten rooms or apartments that have been infected; to sweeten the
air.
7. To make warm and fertile; -- opposed to sour; as, to dry and sweeten
soils.
8. To restore to purity; to free from taint; as, to sweeten water,
butter, or meat.
Sweet"en, v. i. To become sweet. Bacon.
Sweet"en*er (?), n. One who, or that which, sweetens; one who
palliates; that which moderates acrimony.
Sweet"en*ing, n. 1. The act of making sweet.