onyx

noun

on·​yx ˈä-niks How to pronounce onyx (audio)
: a translucent chalcedony in parallel layers of different colors

Examples of onyx in a Sentence

Recent Examples on the Web
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Her nails, too, were on-theme, filed into a square shape and painted with a true, glossy onyx black shade. Kara Nesvig, Allure, 9 Feb. 2026 Her gown was the work of Charles Harbison, and those onyx earrings came from Maison Mèrenor, according to the outlet. Anna Kaufman, USA Today, 9 Feb. 2026 With the gown and accompanying voluminous shawl, the As Ever founder wore vintage onyx and diamond earrings estimated to be worth between $16,400 and $27,350. Rachel Burchfield, InStyle, 9 Feb. 2026 Designed in 18-karat yellow gold with mother-of-pearl and onyx, the brooch is among several Van Cleef & Arpels pieces Queen Camilla has in her personal collection. Julia Teti, Footwear News, 4 Feb. 2026 See All Example Sentences for onyx

Word History

Etymology

Middle English oniche, onyx, from Anglo-French & Latin; Anglo-French, from Latin onych-, onyx, from Greek, literally, claw, nail — more at nail

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of onyx was in the 14th century

Browse Nearby Words

Cite this Entry

“Onyx.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onyx. Accessed 15 Feb. 2026.

Kids Definition

onyx

noun
on·​yx ˈän-iks How to pronounce onyx (audio)
: chalcedony in parallel layers of different color

More from Merriam-Webster on onyx

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