Etymologically

Etymology and origin of the Spanish word ambos

Confidence
Established
Formation
Inherited
First attested
c. 950 Glosas Emilianenses More words from the 10th century
Inherited from
Latin ambo
Ultimate origin
Latin ambō
Etymology tree
inherited borrowed derived
Latin ambō
Spanish ambos

Pronunciation

  • /ˈambos/, [ˈãm.bos][1]

Forms

ambos m pl (feminine plural ambas)[1] Old Spanish usually had amos, amas, also written ammos, ammas, and less often ambos or anbos.[2][3] Dambos is found in Morisco texts and in Leonese today.[4]

Etymology

It is inherited from Latin ambōs (“both”).[4][5][6][1] The usual Old Spanish form was amos, the only truly Castilian one.[4][1] The form with ⟨b⟩ lived on beside it, first as a Leonese form, and then spread with the support of the Latin spelling.[4][1] Henríquez Ureña explains the Castilian form by the lengthening of the nasal before a voiced stop, /mb/ > /mm/ > /m/, as in the Cid.[7] The same word is Portuguese ambos, Galician ambos and Asturian amos, and the compounds Occitan ambedós and Catalan ambdós join it with the numeral “two”.[8][9][1]

The Latin word is an old dual, its ending ⟨-ō⟩ continuing the Indo-European dual ending.[10] It goes back to *ambō and is related to Ancient Greek ἄμφω (ámphō, “both”).[10][1] De Vaan reconstructs Proto-Indo-European *h₂(e)nt-bʰoH (“both”), perhaps a case form of *h₂ent- (“face, front”), as Jasanoff suggested.[10]

Earliest recorded meaning

Corominas dates the word to the Glosas Emilianenses of about 950.[4][5] The DEMel lists ambo in the Glosas Silenses (c. 950–1000) as a primary record.[2] In the Cantar de mio Cid it means “both” in amos los braços “both arms”.[11]

Semantic evolution

The phrase am(b)os a dos “both of them” is already in the Cid and Berceo.[4] Cuervo thought it an alteration of ambos dos, with a from dos a dos.[4] Schuchardt saw in it the Latin conjunction ac “and”, which fits the variant ambos y dos.[4] Corominas found ambos dos only from Santillana, but the TDHLE records it in the Fuero de Avilés about 1155, which supports Cuervo.[3] The compound entrambos occurs in Latin documents of 1031 and 1032.[4] In the 16th century Garcilaso and Juan de Valdés still wrote entramos, and Valdés judged it better than ambos.[4]

Covarrubias in 1611 called ambos a word relating to two things, and noted entrambos and entramos.[12] Autoridades called it a pure Latin word, and ambos a dos a pleonasm much used in Castilian.[13] Terreros made the same remark.[14] The Academy long classed it as a plural adjective, and the current dictionary classes it as an indefinite adjective and pronoun.[15][6] Ambos a dos is now literary.[6][16]

Timeline

  • c. 950 – first record, in the Glosas Emilianenses.[4][5]
  • 1031 – entrambos in a Latin document.[4][5]
  • c. 1140 – the Cantar de mio Cid has amos and amos a dos.[11][4]
  • c. 1155 – ambos dos in the Fuero de Avilés.[3]
  • 1345 – Juan Manuel uses ambos in his Ordenanzas.[17]
  • c. 1495 – Nebrija gives ambos a dos for Latin ambo.[18]
  • 1525 – the first record from the Americas, in Mexico City.[19]
  • 1611 – Covarrubias records ambos, entrambos and entramos.[12]
  • 1726 – Autoridades calls ambos a dos a pleonasm.[13]

Meanings

Adjective

  1. both: the one and the other, with a plural noun for two things already named or understood: Se lavó ambas manos.[6][1]

Pronoun

  1. Both, the one and the other, the two of them: Tengo dos primos y ambos viven en Lima.[6][1]

Word family

  • ambo
  • entrambos

Usage notes

Ambos a dos and ambas a dos mean the same as ambos and are now literary.[6][16] Alemany's dictionary of 1917 also records an unrelated ambos, a measure of weight and dry capacity used in La Unión, in the Philippines.[20]

References

  1. ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock, p. s.v. ambos
  3. ^ a b c Real Academia Española (2021–), Tesoro de los diccionarios históricos de la lengua española (TDHLE): Diccionario histórico (1933–1936), its unpublished slips, Diccionario histórico (1960–1996), DHECan, DHECR, DHEVen, https://www.rae.es/tdhle, p. s.v. ambos
  4. ^ a b c d e f g h i j k l m Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 1, 238
  5. ^ a b c d Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. ambos
  6. ^ a b c d e f 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. ambos
  7. ^ Henríquez Ureña, Pedro (2015), Obras completas, vol. 12: 1936–1940 III, ed. Miguel D. Mena, Santo Domingo: Ministerio de Cultura, p. 94
  8. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. 487
  9. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. ambo
  10. ^ a b c de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  11. ^ a b Cejador y Frauca, Julio (1929), Vocabulario medieval castellano, Madrid: Librería y Casa Editorial Hernando, p. 50
  12. ^ a b Covarrubias Orozco, Sebastián de (1611), Tesoro de la lengua castellana o española, Madrid: Luis Sánchez (Biblioteca Wordkers transcription, CC BY 4.0), p. 165
  13. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. s.v. ambos
  14. ^ 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. 1, 93
  15. ^ Real Academia Española (1817), Diccionario de la lengua castellana, 5th ed., Madrid: Imprenta Real, p. 58
  16. ^ a b Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. ambos
  17. ^ Alonso Pedraz, Martín (1986), Diccionario medieval español: desde las Glosas Emilianenses y Silenses (s. X) hasta el siglo XV, 2 vols., Salamanca: Universidad Pontificia de Salamanca, p. 285
  18. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 292
  19. ^ 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. ambos
  20. ^ Alemany y Bolufer, José (1917), Diccionario de la lengua española, Barcelona: Ramón Sopena, p. 107

Related etymologies

Cite this entry

“Ambos.” Etymologically, 7 Nov. 2026, etymologically.com/es/ambos. Accessed 7 Nov. 2026.

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