Etymologically

Etymology and origin of the Spanish word aguzar

Confidence
Established
Formation
Inherited
First attested
c. 1235 Fuero de Alcalá More words from the 13th century
Inherited from
Latin *acutio
Ultimate origin
Latin acuō

Pronunciation

  • /aɡuˈθaɾ/, [a.ɣ̞uˈθaɾ], /aɡuˈsaɾ/[1]

Forms

aguzar (first-person singular present aguzo, first-person singular preterite agucé, past participle aguzado)[1] Older texts also spell it aguçar; the form agusar is found in Horozco around 1580 and in modern Navarre.[2][3] Regional forms are abuzar in Navarre and Andalusia, abusar in Colombia and ausar in Navarre.[2]

Etymology

It is inherited from Vulgar Latin *acutiāre (“to sharpen”), derived from acūtus (“sharp”).[4][5][6][1] Classical Latin said acuō instead.[4] Corominas notes that acutiator (“sharpener”) is already found in Latin glosses, and that the Vulgar Latin verb survives in all the western Romance languages.[4] It is Portuguese aguçar, Catalan agusar, Occitan agusar, French aiguiser and Italian aguzzare.[1][7] The Spanish word acuciar “to hurry” is a learned form of the same verb, according to García de Diego.[8]

The Latin adjective is the participle of the Latin verb meaning “to sharpen”.[9] That verb probably comes from Proto-Indo-European *h₂eḱ- (“sharp”), the root of acus (“needle”).[1] Corominas notes that Alonso de Palencia and Nebrija write the word with a voiced ⟨z⟩.[4]

Earliest recorded meaning

The first records are in law codes: the Fuero de Alcalá (c. 1235) sets what every smith shall charge to sharpen tools, e aguze a meaja “and let him sharpen for a half-penny”.[10] The DCECH's first record is Berceo's Signos del juicio, where the serpents aguzan los dientes “whet their teeth”.[4][10]

Semantic evolution

From the start the verb meant both to make a point and to put an edge on a blade.[11][2] Alfonso X already used it figuratively for sharpening the mind or a sense, and for spurring a hawk's eagerness.[11] The Libro de Alexandre has horses orejas aguzando “pricking up their ears”, a phrase that the Academy recorded in 1770 together with aguzar el ingenio and aguzar la vista.[10][12] The Academy also listed the obsolete sense “to make a syllable acute” and an Aragonese use for azuzar “to set dogs on”.[13]

In the Caribbean the reflexive aguzarse means to wake up, become sharp or cunning (Cuba, the Dominican Republic, Puerto Rico, Bolivia).[14] In Puerto Rico aguzar a fighting cock is to trim its natural spurs.[14][15]

Timeline

  • c. 1235 – the Fuero de Alcalá uses it of smiths sharpening tools.[10]
  • 1236–1246 – Berceo's Signos del juicio has aguzan los dientes.[4][10]
  • 1250–1279 – Alfonso X's Lapidario mentions the whetstone, la piedra de aguzar.[11]
  • c. 1495 – Nebrija gives Latin acuo and exacuo as equivalents.[16]
  • 1541 – first record in the Americas, at Puebla.[17]
  • 1611 – Covarrubias derives it from Latin acuo.[18]
  • 1726 – the Diccionario de Autoridades records the phrase aguzar el ingenio.[19]
  • 1770 – the Academy records aguzar la vista and aguzar las orejas.[12]

Meanings

Verb

  1. To sharpen to a point, or to make a point finer.[6][1]
  2. To put an edge on a blade, to whet.[6]
  3. To goad (aguijar), stimulate.[6][20]
  4. To ready the teeth or claws for eating or tearing apart.[6]
  5. To make the mind or a sense keener: aguzar el oído “to strain one's ears”.[6][1]
  6. (Puerto Rico) To trim the natural spurs of a fighting cock.[14][15]
  7. (reflexive, Caribbean) To become sharp, wide-awake or cunning.[14]

Word family

  • aguzador
  • aguzadura
  • aguzamiento

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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. aguzar
  3. ^ Covarrubias Orozco, Sebastián de (1611), Tesoro de la lengua castellana o española, Madrid: Luis Sánchez (Biblioteca Wordkers transcription, CC BY 4.0), p. 81
  4. ^ a b c d e f Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 1, 86
  5. ^ Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. aguzar
  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. aguzar
  7. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  8. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. 117
  9. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. acūtus
  10. ^ a b c d e Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE, p. s.v. aguzar
  11. ^ 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. aguzar
  12. ^ a b Real Academia Española (1770), Diccionario de la lengua castellana, 2nd ed., vol. I: A–B, Madrid: Joachín Ibarra, p. 1, 112
  13. ^ Real Academia Española (1817), Diccionario de la lengua castellana, 5th ed., Madrid: Imprenta Real, p. 31
  14. ^ a b c d Asociación de Academias de la Lengua Española (2010), Diccionario de americanismos, Lima: Santillana; online at https://www.asale.org/damer, p. s.v. aguzar
  15. ^ a b Academia Puertorriqueña de la Lengua Española; Universidad de Puerto Rico, Tesoro lexicográfico del español de Puerto Rico, https://tesoro.pr, p. s.v. aguzar
  16. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 287
  17. ^ 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. aguzar
  18. ^ Covarrubias Orozco, Sebastián de (1611), Tesoro de la lengua castellana o española, Madrid: Luis Sánchez (Biblioteca Wordkers transcription, CC BY 4.0), p. 82
  19. ^ Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 1, 132
  20. ^ Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. aguzar

Related etymologies

Cite this entry

“Aguzar.” Etymologically, 14 Nov. 2026, etymologically.com/es/aguzar. Accessed 14 Nov. 2026.

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