Etymologically

Etymology and origin of the Spanish word natrón

Confidence
Disputed
Formation
Borrowing
First attested
1250–1279 Alfonso X, Lapidario, as anatron More words from the 13th century
Borrowed from
Arabic نطرون
Ultimate origin
Egyptian nṯr

Pronunciation

  • /naˈtɾon/, [naˈt̪ɾõn][1]

Forms

natrón m (plural natrones)[1]

Etymology

It is borrowed from Arabic نطرون (naṭrūn), from Ancient Greek νίτρον (nítron, “sodium carbonate”), itself from Egyptian nṯr.[2][1][3] The DLE and Corriente, Pereira and Vicente take the modern word through French natron;[2][3] Corriente, Pereira and Vicente describe it as a modern technical term that reached the Romance languages through French from the Late Latin translations of the Middle Ages.[2][3] The French historical dictionary has it the other way: the French word, first recorded in 1665, came from Arabic by way of Spanish.[4] Wiktionary also derives the French word from Spanish.[5]

Old Spanish already had the word in the lapidary of Alfonso X, as Old Spanish anatron, with the Arabic article fused to it.[6] Etymonline notes the same form in Medieval Latin, Medieval Latin anatron, and in Paracelsus.[7] Corriente, Pereira and Vicente also list Spanish alatrón.[3]

The Greek word, Attic λίτρον (lítron), is a borrowing;[8][1] Wiktionary takes it from Semitic, comparing Biblical Hebrew נתר (néṯer, “washing soda”).[8][1] The learned word nitro goes back to the same Greek word through Latin.[9]

Earliest recorded meaning

Alfonso X's Lapidario (1250–1279) describes la piedra que dizen anatron, “the stone they call natron”, as a kind of borax and a mineral like it.[6] The form natron appears in Alfonso Chirino's Menor daño de la medicina (before 1429, in a late 15th-century copy), where la sal que dizen natron, mixed with figs, is a remedy for a hard spleen.[10]

Semantic evolution

After Chirino the word is rare until the 19th century, when it returns in chemistry and mineralogy: an 1853 translation of Plattner's manual on assaying with the blowpipe names Natron beside trona.[10] In 1819 a list of medicines from Santo Domingo includes salts of natron.[11] Writers of the 1880s mention it in the Egyptian embalming of mummies.[10]

The Academy's dictionary of 1884 defined it as a salt of carbonic acid and soda, used in making soap, glass and spirits, and also as the hard grey residue skimmed from glass-making crucibles.[12] The 22nd edition still had a second sense, the ashes of the saltwort plant, which the current dictionary has dropped.[13][2] Through the chemists' Latin natrium, the word is the source of the symbol Na for sodium.[4][7]

Timeline

  • 1250–1279 – Alfonso X's Lapidario has the form anatron.[6]
  • Before 1429 – Chirino's Menor daño de la medicina has natron (in a late 15th-century copy).[10]
  • 1665 – French natron is first recorded.[4]
  • 1680s – English natron, from French.[7]
  • 1819 – first record from the Americas, in Santo Domingo.[11]
  • 1884 – the Academy's dictionary enters the word, deriving it from Arabic.[12]

Meanings

Noun

  1. (chemistry, mineralogy) natron: natural or artificial sodium carbonate (carbonato), a white, translucent salt that crystallizes and effloresces, used in making soap, glass and dyes.[2][1][14]
  2. (dated) The ashes of the saltwort plant (barrilla).[13][14]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Real Academia Española; Asociación de Academias de la Lengua Española (2014–), Diccionario de la lengua española, 23rd ed., online version 23.8, https://dle.rae.es, p. s.v. natrón
  3. ^ a b c d Corriente, Federico; Pereira, Christophe; Vicente, Ángeles (2019), Dictionnaire des emprunts ibéro-romans: emprunts à l'arabe et aux langues du monde islamique (Encyclopédie linguistique d'Al-Andalus 3), Berlin: De Gruyter, p. s.v. natrão
  4. ^ a b c Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. natron
  5. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. natron
  6. ^ a b c Kasten, Lloyd A.; Nitti, John J.; Gago Jover, Francisco (2002–), Diccionario de la prosa castellana del Rey Alfonso X, New York: Hispanic Seminary of Medieval Studies (electronic edition 2024), p. s.v. natrón
  7. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  8. ^ a b Beekes, Robert S. P. (2010), Etymological Dictionary of Greek, with the assistance of Lucien van Beek, Leiden Indo-European Etymological Dictionary Series 10, Leiden; Boston: Brill, p. s.v. νίτρον
  9. ^ Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. nitro
  10. ^ a b c d Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE, p. s.v. natrón
  11. ^ a b 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. natrón
  12. ^ a b Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 733
  13. ^ a b Real Academia Española (2001), Diccionario de la lengua española, 22nd ed., Madrid: Espasa-Calpe, p. s.v. natrón
  14. ^ a b Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. natrón

Related etymologies

Cite this entry

“Natrón.” Etymologically, 7 Nov. 2026, etymologically.com/es/natr%C3%B3n. Accessed 7 Nov. 2026.

Last edited on . ·