Etymologically

Etymology and origin of the Spanish word enfermar

Confidence
Probable
Formation
Inherited
First attested
c. 1194–1211 Liber Regum (early 13th-century copy) More words from the 12th century
Inherited from
Latin infirmo
Ultimate origin
Latin firmus
Etymology tree
inherited borrowed derived
Latin fīrmus
French ferme
Romanian fermă
Italian fermo
Latin īnfirmus
Latin īnfirmō
Spanish enfermar
English infirm
From the same root
Latin firmē ← fīrmus
Latin firmitās ← fīrmus
Latin firmiter ← fīrmus
Latin firmitūdō ← fīrmus
Latin firmō ← fīrmus
Latin īnfirmāria ← īnfirmus
Latin īnfirmitās ← īnfirmus

Pronunciation

  • /enfeɾˈmaɾ/, [ẽɱ.feɾˈmaɾ][1]

Forms

enfermar (first-person singular present enfermo, first-person singular preterite enfermé, past participle enfermado)[1]

Etymology

It is inherited from Latin īnfirmō (“to weaken”) according to the Academy, Wiktionary and Segura Munguía.[2][1][3] In Medieval Latin the passive of the verb meant “to be ill”.[4] Corominas lists the verb among the derivatives of the adjective enfermo, and the Diccionario de Autoridades says it was formed from that adjective.[5][6]

The Latin verb comes from īnfirmus (“weak, sick”), formed from in- (“not”) and firmus (“firm, strong”).[7][1] Corominas calls the Spanish adjective a semi-learned descendant of the Latin one.[5] Wiktionary traces the Latin adjective's base to Proto-Indo-European *dʰer- (“to hold, support”).[1]

The same Latin verb is Italian infermare, and French infirmer is a learned borrowing of 1370.[3][8] Spanish once had the learned doublet infirmar, old and legal.[5]

Earliest recorded meaning

The Liber Regum (1194–1211, in a copy of the first quarter of the 13th century) says of King Hezekiah of Judah that he enfermo & uino ad ora de muert “fell ill and came to the hour of death”.[9] The Fazienda de Ultra Mar (c. 1200) uses it of Isaac before his death.[9] The first sense is “to fall ill”.[9][10]

Semantic evolution

Corominas and the Breve diccionario date the verb from Berceo's Milagros.[5][11] Alfonso X's prose already has a wider range: to make ill (stones that fazen enfermar de malenconia), to weaken, to taint, and to decline, as of a land laid waste by plague.[12]

In Berceo, the Fueros de Aragón of about 1300, Nebrija and many classical writers the verb is intransitive.[5] The reflexive enfermarse, found in Lope de Vega, is the usual form in the Americas, Andalusia and Galicia.[5] The Diccionario de Autoridades has the intransitive “to fall ill”, the transitive “to make ill” and a figurative “to cause harm or ruin”.[6] Terreros noted that “to weaken” was not very common in Castilian.[13] The Academy extended the verb to plants in 1884.[14]

Colloquially the verb also means to annoy or disgust someone, and in Guatemala enfermarse means to become pregnant.[15] In Cuban billiards it meant to lose all the points but the last.[16][17]

Timeline

  • c. 1194–1211 – the Liber Regum says that Hezekiah enfermo.[9]
  • c. 1200 – the Fazienda de Ultra Mar.[9]
  • 1220–1250 – Berceo's Milagros, Corominas's first record.[5][11]
  • 1250–1279 – Alfonso X's Lapidario has the causative fazen enfermar.[12]
  • 1272–1275 – the General Estoria uses it for “weaken”.[12]
  • c. 1495 – Nebrija gives Latin aegroto as its equivalent.[18]
  • 1545 – the first records from the Americas, in Honduras and the Río de la Plata.[19]
  • 1884 – the Academy extends the sense to plants.[14]
  • 1897 – Membreño notes that Hondurans always use the reflexive form.[20]

Meanings

Verb

  1. (transitive) To make ill, to sicken: El agua contaminada enfermó a medio pueblo.[2][1]
  2. (transitive) To weaken (debilitar), impair or invalidate.[2]
  3. (intransitive, also reflexive) To fall ill: Mi abuelo enfermó el invierno pasado.[2][1]
  4. (transitive, colloquial) To annoy or disgust.[15]
  5. (Guatemala, reflexive) To become pregnant.[15]

Word family

  • enfermante

Usage notes

Enfermar (intransitive) is more usual in Spain, enfermarse in the Americas.[15][5] The verb takes de for the organ or illness (enfermar del hígado).[21]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d 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. enfermar
  3. ^ a b Segura Munguía, Santiago (2014), Lexicón etimológico y semántico del latín y de las voces actuales que proceden de raíces latinas o griegas, Bilbao: Universidad de Deusto, p. 264
  4. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  5. ^ a b c d e f g h Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 2, 615
  6. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 3, 462
  7. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  8. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  9. ^ 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. enfermar
  10. ^ Boggs, R. S.; Kasten, Lloyd; Keniston, Hayward; Richardson, H. B. (1946), Tentative Dictionary of Medieval Spanish, 2 vols., Chapel Hill, N.C., p. s.v. enfermar
  11. ^ a b Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. enfermo
  12. ^ 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. enfermar
  13. ^ 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. 2, 40
  14. ^ 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. 427
  15. ^ a b c d Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. enfermar
  16. ^ Pichardo, Esteban (1875), Diccionario provincial casi-razonado de vozes y frases cubanas, 4th ed., La Habana: Imprenta El Trabajo, p. 137
  17. ^ Santamaría, Francisco J. (1942), Diccionario general de americanismos, 3 vols., México: Pedro Robredo, p. 604
  18. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 344
  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. enfermar
  20. ^ Membreño, Alberto (1897), Hondureñismos: vocabulario de los provincialismos de Honduras, 2nd ed., Tegucigalpa: Tipografía Nacional, p. 69
  21. ^ Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. enfermar

Related etymologies

Cite this entry

“Enfermar.” Etymologically, 14 Nov. 2026, etymologically.com/es/enfermar. Accessed 14 Nov. 2026.

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