Etymologically

Etymology and origin of the Spanish word externo

Confidence
Established
Formation
Borrowing
First attested
c. 1491–1500 Alfonso Fernández de Madrigal (el Tostado), Libro de las paradojas, in a manuscript of c. 1491–1500 More words from the 15th century
Borrowed from
Latin externus
Ultimate origin
Latin exter
Etymology tree
inherited borrowed derived
Latin exter
Latin externus
Italian esterno
Spanish externo
From the same root
Latin exterior ← exter
Latin extrā ← exter
Latin extrēmus ← exter
Latin extrīnsecus ← exter
English external ← externus

Pronunciation

  • /eɡsˈteɾno/, [eɣ̞sˈt̪eɾ.no][1]

Forms

externo (feminine externa, masculine plural externos, feminine plural externas)[1]

Etymology

It is a learned word, borrowed from Latin externus (“outward, external”).[2][3][4][1] Corominas lists it among the learned words of the family of the Latin preposition extrā (“outside”), beside exterior and extremo.[2][3]

The same Latin adjective was taken into Italian esterno and French externe.[5] The Latin adjective is formed from exter (“outward, on the outside”),[1][6] which Wiktionary derives from *h₁eǵʰsteros, a form built on *h₁eǵʰs, the source of ex (“out of”).[1]

Earliest recorded meaning

The Old Spanish Textual Archive has two occurrences, the earlier in a manuscript of about 1491–1500 of the Libro de las paradojas of Alfonso Fernández de Madrigal, el Tostado.[7] A document from Peru of 1561 calls a need externa, that is, outward or visible.[8] Corominas dates the word from Oudin's dictionary of 1607.[2][3] Saavedra Fajardo used it in 1640.[2]

Semantic evolution

In Latin the adjective meant both “on the outside” and “foreign”, and in the plural it named foreigners.[9][10] The Diccionario de Autoridades still gave “foreign, strange” as its sense, while noting that usage took the word for “exterior”, and quoted Saavedra Fajardo's demonstraciones externas and a passage on the jurisdicción externa of the Church.[11] Terreros set it against interno.[12] The Academy's dictionary of 1817 defined it as what acts or shows itself outwardly, and the 1869 edition added the contrast with what is internal.[13][14]

The school sense, a pupil who comes only for lessons, was recorded by Salvá in 1846 as a neologism and entered the Academy's dictionary in 1899.[15][16] It was also in use in the Americas: a text from Medellín of 1896 speaks of a boy who left boarding to attend as externo.[8] Today the adjective is common in medicine and anatomy (conducto auditivo externo) and for workers or auditors from outside a firm.[4][17]

Timeline

  • c. 1491–1500 – the earliest of two occurrences in the Old Spanish Textual Archive, in a manuscript of the Tostado's Libro de las paradojas.[7]
  • 1561 – a document from Peru uses the feminine externa.[8]
  • 1607 – Oudin's dictionary, the DCECH's first record.[2][3]
  • 1640 – Saavedra Fajardo uses it in his Empresas.[2][11]
  • 1817 – the Academy defines it as what acts or appears outwardly.[13]
  • 1846 – Salvá records the school sense as a neologism.[15]
  • 1884 – the Academy gives the etymology from Latin externus.[18]
  • 1899 – the school sense enters the Academy's dictionary.[16]

Meanings

Adjective

  1. external: acting or showing itself on the outside, as opposed to what is internal: La causa del fallo fue externa al sistema.[4][19][1]
  2. Of a pupil: attending a school only during class hours, a day pupil; also used as a noun.[4][19]
  3. Of a worker or service: working for a company from outside, without belonging to its staff.[17]

Word family

  • externado

References

  1. ^ a b c d e f 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. 2, 828
  3. ^ a b c d Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. extra
  4. ^ a b c d 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. externo
  5. ^ Segura Munguía, Santiago (2001), Nuevo diccionario etimológico latín-español y de las voces derivadas, Bilbao: Universidad de Deusto, p. 273
  6. ^ Bénaben, Michel (2000), Dictionnaire étymologique de l'espagnol, Paris: Ellipses, p. s.v. externo
  7. ^ a b Hispanic Seminary of Medieval Studies (2026), Old Spanish Textual Archive (OSTA): semi-paleographic transcriptions of Old Spanish texts, ed. Francisco Gago Jover et al., https://www.hispanicseminary.org
  8. ^ 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. esterno
  9. ^ Segura Munguía, Santiago (2014), Lexicón etimológico y semántico del latín y de las voces actuales que proceden de raíces latinas o griegas, Bilbao: Universidad de Deusto, p. 228
  10. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. externus
  11. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 3, 696
  12. ^ 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, 137
  13. ^ a b Real Academia Española (1817), Diccionario de la lengua castellana, 5th ed., Madrid: Imprenta Real, p. 405
  14. ^ Real Academia Española (1869), Diccionario de la lengua castellana, 11th ed., Madrid: Imprenta de Don Manuel Rivadeneyra, p. 349
  15. ^ a b Salvá, Vicente (1846), Nuevo diccionario de la lengua castellana, París: Librería de Don Vicente Salvá, p. 504
  16. ^ a b Real Academia Española (1899), Diccionario de la lengua castellana, 13th ed., Madrid: Imprenta de los Sres. Hernando y Compañía, p. 445
  17. ^ a b Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. externo
  18. ^ Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 481
  19. ^ a b Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. externo

Related etymologies

Cite this entry

“Externo.” Etymologically, 7 Nov. 2026, etymologically.com/es/externo. Accessed 7 Nov. 2026.

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