Etymologically

Etymology and origin of the Spanish word adulto

Confidence
Established
Formation
Borrowing
First attested
1385 a text of Lucas de Tuy listed by DEMel and HSMS More words from the 14th century
Borrowed from
Latin adultus
Ultimate origin
Latin alō
Etymology tree
inherited borrowed derived
Latin alō
Latin adolēscō
Latin adultus
English adult
French adulte
Italian adulto
Spanish adulto
From the same root
Latin alēscō ← alō
Latin alimentum ← alō
Latin alimōnia ← alō
Latin alimōnium ← alō
Latin altrix ← alō
Latin adulēscēns ← adolēscō
English adulthood ← adultus

Pronunciation

  • /aˈdulto/, [aˈð̞ul̪.t̪o][1]

Forms

adulto (feminine adulta, masculine plural adultos, feminine plural adultas)[1]

Etymology

It is borrowed from Latin adultus (“grown up, full-grown”), the past participle of adolēscō (“to grow up”), whose present participle gave adolescente.[2][3][4][1][5] Corominas dated the Spanish word to about 1560,[2][3] but the DEMel and the HSMS find it in texts of the late 14th century, and the DTME dates it from 1385.[6][7][8] The French word adulte was borrowed from the same Latin participle, first in an older form in 1394 and in its present form in the 16th century.[9]

De Vaan lists both Latin words among the derivatives of alō (“to suckle, nourish”), from Proto-Italic *alō (“to feed”).[10] Wiktionary traces this verb to Proto-Indo-European *h₂életi (“to grow, nourish”).[1]

Earliest recorded meaning

The earliest records are the feminine adulta in Juan Fernández de Heredia's Orosius (second half of the 14th century) and adulto in a Lucas de Tuy text dated before 1385.[6][7] In 1463 Juan de Lucena uses it of age in Vida beata: Dionysius's daughters shaved him until they vinieron después en adulta edat “later came to adult age”, after which he trusted them less.[11] The sense was “grown up”, of a person who has finished growing.[11]

Semantic evolution

In 1611 Covarrubias divided a man's life into three ages, the growing one, la adulta, que es varón perfeto “the adult, when he is a complete man”, and old age.[11] The Diccionario de Autoridades (1726) defined the word as grown and come to a full, robust age, and added a figurative use for grown things, living or not, which it called more frequent in poetry.[12]

The Academy's dictionaries of 1770, 1817 and 1843 defined adulto as one who is in adolescence,[13][14][15] while Domínguez in 1846 used it for the period between puberty and old age, and also of plants and animals that have reached their full development.[16] The 1884 edition gave the etymology, the sense “come to the end of adolescence”, the animal and plant use and a figurative one, lenguas adultas “mature languages”.[17] The DLE now adds a zoological sense, an animal capable of reproducing.[4]

In much of Latin America adulto mayor is a euphemism for a person over sixty, and in Chile adulto joven is a mature person who keeps youthful habits.[18]

Timeline

  • Second half of the 14th century – adulta in Juan Fernández de Heredia's Orosius.[6]
  • Before 1385 – adulto in a Lucas de Tuy text, the first record of the masculine.[6][7]
  • 1463 – Juan de Lucena writes adulta edat “adult age” in Vida beata.[11]
  • c. 1560 – the date Corominas gives for the first record.[2][3]
  • 1575 – the first record from the Americas, in Mexico: ya eres adulta y no eres niña “you are a grown woman now, not a girl”.[19]
  • 1611 – Covarrubias names la adulta as the second of man's three ages.[11]
  • 1726 – the Diccionario de Autoridades records the word and its figurative, mainly poetic use.[12]
  • 1770 – the Academy defines it as being in adolescence, a definition kept until 1843.[13][15]
  • 1884 – the Academy gives the etymology and the senses for animals and plants.[17]

Meanings

Adjective

  1. Of a living being: having reached full growth or development; adult, grown-up: Un gato adulto duerme muchas horas.[4][1]
  2. Having reached a certain degree of perfection; mature, experienced: una literatura adulta.[4][20]
  3. (zoology) Of an animal: fully able to reproduce.[4][8]

Noun

  1. An adult, a person who has reached adult age: Los adultos pagan la entrada completa.[4][1][8]
  2. (Latin America) adulto mayor: an elderly person, over sixty (a euphemism).[18]

Word family

  • adultez

Usage notes

Edad adulta “adult age” is a set phrase.[4][11]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 1, 57
  3. ^ a b c Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. adolescente
  4. ^ a b c d e f g 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. adulto
  5. ^ Bénaben, Michel (2000), Dictionnaire étymologique de l'espagnol, Paris: Ellipses, p. s.v. adulto
  6. ^ a b c d Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock
  7. ^ a b c 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 Real Academia Nacional de Medicina (2011), Diccionario de términos médicos, Madrid: Editorial Médica Panamericana; online at https://dtme.ranm.es, p. s.v. adulto
  9. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  10. ^ 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 c d e f 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. adulto
  12. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 1, 96
  13. ^ a b Real Academia Española (1770), Diccionario de la lengua castellana, 2nd ed., vol. I: A–B, Madrid: Joachín Ibarra, p. 1, 80
  14. ^ Real Academia Española (1817), Diccionario de la lengua castellana, 5th ed., Madrid: Imprenta Real, p. 21
  15. ^ a b Real Academia Española (1843), Diccionario de la lengua castellana, 9th ed., Madrid: Imprenta de D. Francisco María Fernández, p. 15
  16. ^ 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. 44
  17. ^ 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. 24
  18. ^ a b Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer, p. s.v. adulto
  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. adulto
  20. ^ Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. adulto

Related etymologies

Cite this entry

“Adulto.” Etymologically, 7 Nov. 2026, etymologically.com/es/adulto. Accessed 7 Nov. 2026.

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