Eonic Arraniol, or Ancient Arraniol (Aranyul Ya'eca) is an artistic and naturalistic conlang that first serves as the fictional language of the Old World during the rise of early civilizations to then becoming one of the subconscious mainframe of all universes in the Multiverse as their protolangs.

The language has also been used by the early civilizations in the Multiverse, primarily the Inner Rim Universes, universes that are closest to the Arranian Center or the Core of the Multiverse.

The language was introduced by the Prophets of Arrania from the Old World that has attained extended lives to continue spreading the teachings of Arrania long after the death of Arrania and the Old World, which in turn cause a cascading effect of Eonic Arraniol being subconsciously became the one of the first protolangs of the Multiverse.