vt to expose to the sun and wind.
2. sunder ·vt a separation into parts; a division or severance.
3. sunder ·vi to part; to separate.
4. sunder ·vt to disunite in almost any manner, either by rending, cutting, or breaking; to part; to put or keep apart; to separate; to divide; to sever; as, to sunder a rope; to sunder a limb; to sunder friends.