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Onyx

/ˈɒnɪks/noun

A banded variety of chalcedony, usually black with white layers, cut for jewellery and carving.

The Greek roots

ὄνυξ
ónyx
fingernail, claw

Literally: fingernail

Follow a root:ὄνυξ3 words

The story of the word

Greeks named the stone after the fingernail, because the pale streaked bands look like the pink-and-white of a nail seen against the light. Ovid tells a story of Cupid clipping Venus's nails while she slept, the parings turning to stone. The same root gives onycho- in medicine, as in onychomycosis, a nail fungus.

How it travelled
Ancient Greek → Latin → Old French → English
First recorded
13th century

Same family

onychomycosissardonyx

In a sentence

The chess set was cut from onyx, each black square catching a thin white seam.

Built on the same root

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