Eonic Arraniol, or Ancient Arraniol ('Arañul Ya'eca) is an artistic and naturalistic constructed language, or 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 mainframes of all universes in the Multiverse as their protolanguage.

The speakers of this language are the ancient humans and monsters of the Old World, also known as the 'Aranya people. The humans of 'Aranya are analogous to Mesopotamian, Egyptian or Levantine populations, with olive skin, dark hair, and Near Eastern features, while the monsters take the form of farm and domestic animals such as sheep, cows, goats, horses, cats, dogs, rabbits. The monsters of 'Aranya embody stability, domestication, and agriculture. They lived in what is known as the Arranian Flatlands and are relatively peaceful, with large stone step pyramid structures, large crop farms and agriculture. They held markets that sold and exported goods like copper tools and pottery, papers, grain, and wine, while receiving imports from other parts of the world. Trades like timber, woven cloth, and masks from the Faxorani Island from the East; spices, salt, and gemstones from the Shutarin Desert in the South; shells, pearls, dried fish, and maritime goods from the Tenyora archipelagos in the West; wool, cattle, obsidian from the rival Nryatu herders from the Plateau; and rarely furs, ivory, and carved bones from the Ghurnak tribes from the North. Respect, politeness, formality and tradition are the ideas or values that are most important to them. The 'Aranya worshipped Arrania as their True God, the Creator of Everything, and prayed for His recovery during the Weakening stage of the Old World.

The language has also been used by the early civilizations in the Multiverse, primarily the Inner Rim Universes, universes closest to the Arranian Center or the Core of the Multiverse. The language was first 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 the Arrania and the Old World, which in turn cause a cascading effect of Eonic Arraniol being subconsciously became the one of the first protolanguages of the Multiverse.