Etymologically

Etymology and origin of the Spanish word afirmar

Confidence
Established
Formation
Borrowing
First attested
1220–1250 Gonzalo de Berceo More words from the 13th century
Borrowed from
Latin affirmo
Ultimate origin
Latin firmus
Etymology tree
inherited borrowed derived
Latin fīrmus
French ferme
Italian fermo
Latin firmō
French fermer
Italian fermare
Spanish firmar
Italian firmare
Latin affirmō
Spanish afirmar
From the same root
Latin firmē ← fīrmus
Latin firmitās ← fīrmus
Latin firmiter ← fīrmus
Latin firmitūdō ← fīrmus
Latin īnfirmus ← fīrmus
English firm ← firmō
Italian firma ← firmō
Latin cōnfirmō ← firmō
Latin firmāmentum ← firmō
Latin offirmō ← firmō
Spanish firma ← firmō
French enfermer ← fermer
French refermer ← fermer
Italian fermata ← fermare
English affirm ← affirmō

Pronunciation

  • /afiɾˈmaɾ/, [a.fiɾˈmaɾ][1]

Forms

afirmar (first-person singular present afirmo, first-person singular preterite afirmé, past participle afirmado)[1] Old forms include affirmar and afyrmar; a popular ahirmar is found in texts of the 16th and 17th centuries.[2][3]

Etymology

It is borrowed from Latin affirmō (“to strengthen, confirm; to assert”).[3][4][5][1] Corominas adds that in some senses it is a popular formation from firme, and the 1726 Autoridades already analysed it as a- with the adjective.[3][6] The Latin verb is formed ad- (“to”) and firmō (“to strengthen”), from firmus (“firm”).[7][1]

García de Diego calls the standard form a learned word and sets beside it the popular outcome: Old Spanish ahirmar and similar Cantabrian forms.[8][9] The Academy recorded this variant from 1726 as rare or old, between 1770 and 1817 as used only in carpentry and other trades.[2] The same Latin word is Portuguese afirmar, Catalan afirmar, French affirmer and Italian affermare.[9][1]

Earliest recorded meaning

Corominas dates the word to Berceo (1220–1250).[3][4] The TDHLE quotes an earlier affirmot “confirmed” in a charter of 1062 from San Juan de la Peña, and afirmare in the Fuero de Medinaceli of about 1129, both in the sense “to confirm, ratify” of legal documents.[2] The Fuero de Zorita (1218–1250) has tod aquel que afirmar ouiere, of a man who has to establish a claim.[10]

Semantic evolution

The oldest sense is “to confirm, ratify”, especially in notarial use; from it come “to make firm, steady” and, by the 13th century, “to state as true”.[2][11] Alfonso X's prose already has the verb for fixing an instrument in place, for asserting something, and reflexively for keeping to what one has said.[11] The Autoridades of 1726 also recorded an Aragonese sense “to settle, reside” and Covarrubias a fencing term, afirmarse “to advance firmly on the opponent with the point of the sword”.[6][12] Cervantes writes that Don Quixote se afirmó bien en los estribos “planted himself firmly in the stirrups”.[13]

In Chile and Mexico afirmar has meant “to deal (blows)”, a sense that Román criticised and the dictionaries of Americanisms record; in the Canaries it means to give someone a thrashing.[14][15][16][17] In Judeo-Spanish it means “to sign”, and afirmarse is said of a prophecy or a blessing that comes true.[18]

Timeline

  • 1062 – a charter from San Juan de la Peña has affirmot “confirmed”.[2]
  • c. 1129 – the Fuero de Medinaceli has afirmare.[2]
  • 1220–1250 – Berceo uses afirmar.[3][4]
  • c. 1240 – the Libro de Apolonio has afirmaron la cosa “they confirmed the matter”.[2]
  • 1254 – the Alfonsine Judizios de las estrellas uses it for “to assert as true”.[11]
  • c. 1495 – Nebrija gives Latin affirmo, affero and astruo.[19]
  • 1611 – Covarrubias records the fencing sense.[12]
  • 1726 – the Diccionario de Autoridades derives it from a- and firme and records the Aragonese sense “to reside”.[6]
  • 1884 – the Academy's dictionary gives the Latin etymon, ad and firmare.[20]

Meanings

Verb

  1. (transitive, also reflexive) To make firm, steady or secure.[5][21]
  2. (transitive) To assert, affirm, state as true: El testigo afirmó que no había visto nada.[5][1]
  3. (reflexive) To steady oneself by leaning on something: afirmarse en los estribos.[5]
  4. (reflexive) To stand by what one has said or declared.[5][2]
  5. (reflexive, fencing) To move firmly towards the opponent, presenting the point of the sword.[5][12]
  6. (Mexico, Chile) To deal blows or lashes to someone.[16][15]

Word family

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h 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. afirmar
  3. ^ a b c d e Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 2, 902
  4. ^ a b c Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. firme
  5. ^ 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. afirmar
  6. ^ a b c Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 1, 108
  7. ^ Gómez de Silva, Guido (1988), Breve diccionario etimológico de la lengua española, México: Fondo de Cultura Económica / El Colegio de México, p. s.v. afirmar
  8. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. 251
  9. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  10. ^ Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE, p. s.v. afirmar
  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. afirmar
  12. ^ a b c Covarrubias Orozco, Sebastián de (1611), Tesoro de la lengua castellana o española, Madrid: Luis Sánchez (Biblioteca Wordkers transcription, CC BY 4.0), p. 72
  13. ^ Cejador y Frauca, Julio (1905–1906), La lengua de Cervantes: gramática y diccionario de la lengua castellana en El ingenioso hidalgo don Quijote de la Mancha, 2 vols., Madrid: Jaime Ratés, p. 45
  14. ^ Román, Manuel Antonio (1901–1918), Diccionario de chilenismos y de otras voces y locuciones viciosas, 5 vols., Santiago de Chile: Imprenta de San José, p. 26
  15. ^ a b Santamaría, Francisco J. (1942), Diccionario general de americanismos, 3 vols., México: Pedro Robredo, p. 50
  16. ^ 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. afirmar
  17. ^ Academia Canaria de la Lengua (2010), Diccionario básico de canarismos, Santa Cruz de Tenerife; online at https://www.academiacanarialengua.org, p. s.v. afirmar
  18. ^ Nehama, Joseph (1977), Dictionnaire du judéo-espagnol, Madrid: CSIC, p. s.v. afirmar
  19. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 286
  20. ^ Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 27
  21. ^ Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. afirmar

Related etymologies

Cite this entry

“Afirmar.” Etymologically, 7 Nov. 2026, etymologically.com/es/afirmar. Accessed 7 Nov. 2026.

Last edited on . ·