Etymologically

Etymology and origin of the Spanish word otro

Confidence
Established
Formation
Inherited
First attested
c. 950 Glosas Emilianenses, as altro More words from the 10th century
Inherited from
Latin alter via Old Spanish
Ultimate origin
Proto-Indo-European *h₂élteros
Etymology tree
inherited borrowed derived
Latin alter
French autre
Italian altro
Spanish otro
From the same root
Latin adulterō ← alter
Latin altercor ← alter
Latin alternus ← alter
Latin alterō ← alter
Latin alteruter ← alter
French autrefois ← autre
French autrement ← autre

Pronunciation

  • /ˈotɾo/, [ˈo.t̪ɾo][1]

Forms

otro m (plural otros, feminine otra, feminine plural otras)[1] The earliest form is altro (Glosas Emilianenses), and medieval texts also have altra, altre, otre and alotro.[2][3] Leonese has utro, with the u of uno, and Asturian utru;[4] otre and otri are found in Soria, La Rioja and Navarre.[4]

Etymology

It is inherited from Old Spanish altro (the form of the Glosas Emilianenses; the Cid already has the modern form), inherited from Latin alter (“the other of two”).[2][5][6][1] Already in Vulgar Latin it replaced classical alius (“other”), and in this form it passed into all the Romance languages.[2] The Spanish Wiktionary and Gómez de Silva set an intermediate stage autro.[7][8] The Academy's dictionaries have named different Latin case forms: the 1884 edition the ablative, the 2001 edition the accusative, and the current one simply the nominative.[9][10][6]

The same Latin word is Portuguese outro, Galician outro, Asturian otru, Aragonese atro, Catalan altre, Occitan autre, French autre, Italian altro and Romanian alt.[1][11][4] Unlike its sister languages, Castilian does not combine the word with the indefinite article un, although Old Aragonese inventories of 1379 have this combination.[2] The obsolete pronoun otri (“another person”), from the Latin dative, is recorded from 1251.[2]

The Latin word is formed from the same base as the classical word for “other”, from Proto-Italic *al-tero- and Proto-Indo-European *h₂el-tero- “the other (of two)”, with the contrastive suffix also seen in Ancient Greek ἕτερος (héteros).[12][13][1]

Earliest recorded meaning

The Glosas Emilianenses of about 950 have altro, and the Cantar de mio Cid (c. 1140) has otro.[2][5] The Cid already uses it as pronoun and adjective and in the phrases otro tanto “as much again” and otro día mañana “the next morning”.[14]

Semantic evolution

Old Spanish otro also meant “next”: an Alfonsine chronicle promises a letter de aqui a otro dia de cras por noche “by the night after tomorrow”.[15] The compound otrosí “likewise” (1100, and in the Cid) is formed with sí “so” and survives only in legal language.[2][5] Otramente “otherwise” was used from the Libro de Alexandre to Alonso de Palencia but later dropped, while it stayed alive in the other Romance languages.[2]

Nebrija in 1513 glossed it as “one of the two”, Latin alter.[16] The Diccionario de Autoridades recorded its use to mark a close likeness (es otro San Francisco) and the exclamation ¡otra! of annoyance, and the Academy's 1884 edition added ¡otra! as the call for an encore.[17][9] The adverb otrora “formerly” is a literary loan from Portuguese outrora, first recorded in Argentina in 1913.[2][5]

Timeline

  • c. 950 – the Glosas Emilianenses have altro.[2]
  • 1100 – first record of the compound otrosí.[2]
  • c. 1140 – the Cantar de mio Cid has otro, otro tanto and otro día mañana.[2][14]
  • 1251 – the Calila e Dimna has the pronoun otri “another person”.[2]
  • 1379 – Old Aragonese inventories use un otro.[2]
  • 1494 – the first record from the Americas, in Santo Domingo.[18]
  • 1726–1739 – the Diccionario de Autoridades records es otro San Francisco and the interjection ¡otra!.[17]
  • 1884 – the Academy adds ¡otra! as a call for an encore.[9]
  • 1913 – first record of otrora, a loan from Portuguese.[2]

Meanings

Adjective

  1. other, different from the person or thing being spoken of; also as a noun: Prefiero el otro coche.[6][1]
  2. another, one more, without the article: Dame otra oportunidad.[6]
  3. Used to mark a close likeness between two different people or things: es otro Picasso “he is a second Picasso”.[6][17]
  4. With the article before words of time such as día or tarde, a recent past: el otro día “the other day”.[6]
  5. With the article before words such as día, semana or año, the following one: al otro día “the next day”.[6]

Pronoun

  1. Another person or thing; someone or something else: Esta no me gusta, quiero otra.[6][1]

Interjection

  1. ¡otra!: a call for an encore at a performance; also an expression of impatience at someone's repeated mistakes.[6]

Word family

  • otrosí
  • estotro
  • esotro
  • alterar
  • alterno
  • otrora
  • altruismo
  • Latin alter
  • Portuguese outro

Usage notes

Esa es otra says that what has just been said is one more absurdity or difficulty.[6][17] Castilian does not say un otro: it is otro libro “another book”.[2]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 4, 323
  3. ^ Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock, p. s.v. otro
  4. ^ a b c García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. art. 463
  5. ^ a b c d Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. otro
  6. ^ a b c d e f g h i j 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. otro
  7. ^ Wikcionario (Spanish Wiktionary), es.wiktionary.org, p. s.v. otro
  8. ^ Gómez de Silva, Guido (1988), Breve diccionario etimológico de la lengua española, México: Fondo de Cultura Económica / El Colegio de México, p. 514
  9. ^ a b c Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 769
  10. ^ Real Academia Española (2001), Diccionario de la lengua española, 22nd ed., Madrid: Espasa-Calpe, p. s.v. otro
  11. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. alter
  12. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill, p. s.v. alius
  13. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. alter
  14. ^ a b Menéndez Pidal, Ramón (1908–1911), Cantar de Mio Cid: texto, gramática y vocabulario, 3 vols., Madrid: Bailly-Baillière, p. 373
  15. ^ 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. otro
  16. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 391
  17. ^ a b c d Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 5, 65
  18. ^ 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. otro

Related etymologies

Cite this entry

“Otro.” Etymologically, 7 Nov. 2026, etymologically.com/es/otro. Accessed 7 Nov. 2026.

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