Meaning & Story
Onix is a variant spelling of Onyx, from the Greek onux meaning 'nail' or 'claw,' referring to the black gemstone. As a pet name it suggests deep, rich darkness and a gem-like quality.
Onix has the weight and sheen of the gemstone it names, with a slightly more modern spelling that gives it a video-game cool (Onix is also a rock-type Pokemon). It's ideal for a deep black or dark-coated animal — that polished, gemstone quality that seems to absorb light rather than reflect it. There's a solidity to Onix that suggests a pet of substance and presence, one who occupies space with authority and has a certain rocky determination about them.