Truename

A thing's truename is the name by which the Universe itself knows it. While every creature and object has a Truename, this is typically important only for planar Outsiders -- fiends, celestials, elementals, and some fey. Knowing and using an Outsider's truename gives one power over it. For most mortals, the truename corresponds to their regular common name.
Truenaming is an obscure form of magic, related to but distinct from arcane magic, pertaining to speaking the truenames of creatures and things.
category:Magic
category:Language
category:Name