Minecraft Dungeons:Withering

Withering is an unused enchantment $$ that grants the user the ability to inflict Wither upon hit. It is an exclusive enchantment to the Stone Sword, used by Wither Skeletons, and can even be applied by Red Snakes held by Wither Skeleton Archers.

Usage
Any melee weapon enchanted with Withering grants the user the ability to inflict Wither upon physical contact.

Trivia

 * It is the third melee enchantment that is unobtainable, with the first being Knockback then Poisoning.