Aunyx appears to be a modern invented spelling, possibly inspired by the gemstone name Onyx.
Aunyx is a creative reimagining of Onyx, the deep black gemstone whose name comes from the Greek "onyx" (ὄνυξ), meaning nail or claw — a reference to the stone's layered, fingernail-like banding. The Greeks told the myth that Onyx was formed when Eros mischievously clipped the divine fingernails of the sleeping Aphrodite; the cuttings fell into the Indus River and hardened into stone. Onyx has been valued since antiquity for carving cameos and protective amulets, and black onyx in particular has long been associated with grounding energy, strength, and protection against negative forces.
As a gemstone name adapted for persons, Onyx entered the modern naming lexicon through the broader embrace of mineral and elemental names — Jade, Ruby, Amber, Jasper, Flint — that gained momentum in the late 20th century. Aunyx distinguishes itself through a distinctive respelling that changes both the sound and the visual signature of the name. The "Au-" prefix gives it an unexpected, slightly regal opening — "au" being the chemical symbol for gold and a prefix meaning "ear" in Latin — while the "-nyx" ending preserves the connection to Nyx, the Greek goddess of night, one of the primordial deities born from Chaos.
This layering of resonances — gemstone, gold, night — gives Aunyx unusual mythological richness for a modern invented name. It suits a naming tradition that values darkness and power as positive attributes, moving away from purely soft or pastoral name aesthetics.