Inflict wounds

Inflict light wounds, also known as cause light wounds, was a necromancy spell that caused light damage to a creature touched by the caster. After the Second Sundering it was simply called inflict wounds.

Effects
When this spell was cast, the caster channeled negative energy which did harm to living beings. Since undead were powered by negative energy, this spell cured them of a like amount of damage, rather than harming them.

The reverse of this spell, cure light wounds, channeled positive energy and had the exact opposite effect (healed the living, harmed the undead).