Etymologically

Etymology and origin of the Spanish word ónix

Confidence
Established
Formation
Borrowing
First attested
1629 Huerta's translation of Pliny, spelt onyche More words from the 17th century
Borrowed from
Latin onyx
Ultimate origin
Ancient Greek ὄνυξ
Etymology tree
inherited borrowed derived
Ancient Greek ὄνυξ (ónux)
Latin onyx
English onyx
Spanish ónix
The word's journey

Pronunciation

  • /ˈoniɡs/, [ˈo.niɣ̞s][1]

Forms

ónix m or (less common) f[1] The older forms are onyche (1629) and ónice; the 2001 Academy dictionary also lists ónique.[2][3][4]

Etymology

It is borrowed from Latin onyx, a learned word that keeps the Latin nominative; the Latin is from Ancient Greek ὄνυξ (ónux, “nail, claw”).[1][5][2] The Greek word also named the gem, and Corominas explains the name by the stone's colour, like that of a fingernail.[2][6] Beekes thinks the gem sense may come from the stone's nail-like white glaze, but does not rule out a foreign word reshaped by popular etymology.[1]

The Greek noun goes back to Proto-Indo-European *h₃negʰ- (“nail”), the same root as Latin unguis (“nail”).[1] Spanish uña, from the Latin diminutive ungula, is therefore a distant relative of the gem name, and the DCECH treats the gem name under that word.[2][6]

Earliest recorded meaning

The variant ónice is first recorded in 1629, as onyche, in Huerta's translation of Pliny, quoted by the Diccionario de Autoridades.[2][6][3] The form ónix appears in a text from Potosí of 1636, which describes precious stones as opacas como el ónix “opaque like onyx”.[7]

Semantic evolution

In Latin onyx was a much-prized stone, probably a kind of marble, used for floors and for drinking vessels.[8][9] The Diccionario de Autoridades describes onyche as a dark kind of agate mixing white and black, brought from Arabia and India, and notes that Dioscorides calls it a kind of alabaster.[3] Terreros gives onique as an opaque agate of white and black bands.[10]

Domínguez, in 1846, defines ónix as a variety of chalcedony with whitish bands on a bluish ground, and records an anatomical sense, a membrane growing from the outer corner of the eye towards the cornea.[11] The Academy's dictionary of 2001 treats ónix as a variant of ónice.[12]

Timeline

  • 1629 – onyche in Huerta's translation of Pliny.[2][3]
  • 1636 – ónix in a text from Potosí.[7]
  • 1726–1739 – the Diccionario de Autoridades has the entry onyche.[3]
  • 1846 – Domínguez defines ónix as a banded chalcedony.[11]
  • 1874 – ónice in a text from Peru, for black stones.[7]
  • 2001 – the Academy lists ónix, ónice and ónique as one word.[12][4]

Meanings

Noun

  1. onyx: a banded variety of agate or chalcedony with layers of different colours, used in jewellery; the same as ónice: Llevaba un anillo de ónix negro.[12][13][1]

Usage notes

Wiktionary gives ónix as masculine, less commonly feminine, while the Academy's 2001 dictionary and Moliner give it as feminine.[1][12][13]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 5, 715
  3. ^ a b c d e Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 5, 40
  4. ^ a b Real Academia Española (2001), Diccionario de la lengua española, 22nd ed., Madrid: Espasa-Calpe, p. s.v. ónique
  5. ^ Segura Munguía, Santiago (2001), Nuevo diccionario etimológico latín-español y de las voces derivadas, Bilbao: Universidad de Deusto, p. 517
  6. ^ a b c Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. uña
  7. ^ a b c Boyd-Bowman, Peter (2003), Léxico hispanoamericano 1493–1993, ed. Ray Harris-Northall and John J. Nitti, New York: Hispanic Seminary of Medieval Studies, p. s.v. ónice
  8. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  9. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  10. ^ Terreros y Pando, Esteban de (1786–1793), Diccionario castellano con las voces de ciencias y artes y sus correspondientes de las tres lenguas francesa, latina e italiana, 4 vols., Madrid: Viuda de Ibarra, p. 2, 709
  11. ^ a b Domínguez, Ramón Joaquín (1846–1847), Diccionario nacional o gran diccionario clásico de la lengua española, 2 vols., Madrid: Establecimiento Léxico-Tipográfico de R. J. Domínguez, p. 2, 1289
  12. ^ a b c d Real Academia Española (2001), Diccionario de la lengua española, 22nd ed., Madrid: Espasa-Calpe, p. s.v. ónix
  13. ^ a b Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. ónix

Related etymologies

Cite this entry

“Ónix.” Etymologically, 7 Nov. 2026, etymologically.com/es/%C3%B3nix. Accessed 7 Nov. 2026.

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