Etymologically

Etymology and origin of the Spanish word julio

julio1 July

Confidence
Established
Formation
Borrowing
First attested
c. 1223 Semejanza del mundo, spelt jullio
Borrowed from
Latin Iulius
Ultimate origin
Latin Iulius
Etymology tree of julio1
inherited borrowed derived
Latin Iūlius
English July
German Juli
Spanish julio

Pronunciation

  • /ˈxuljo/, [ˈxu.ljo][1]

Forms

julio m (plural julios)[1] Old Spanish texts spell it julio, iulio, jullio and iuliyo.[2]

Etymology

The word for July is borrowed from Latin Iūlius (“July; of the Julian family”), the name given to the month in honour of Julius Caesar.[3][4][5] Corominas and the BDELC treat it as taken from Latin, a word in general use at every period;[3][4][1][6] Wiktionary calls it inherited and probably semi-learned, and García de Diego leaves open whether it is a learned word or a reaction against the popular forms of the dialects around Burgos.[3][4][1][6]

In the Ibero-Romance languages popular forms such as Portuguese julho were used at first everywhere, but the learned forms soon came into Castilian.[7] Catalan and French turned to the diminutives Catalan juliol and French juillet, which kept the month apart from June better.[7] Other forms of the same word are Italian luglio, Occitan julh, Galician xullo and Asturian xuliu.[1][8]

The Latin month was earlier called quīntīlis (“fifth”) and was renamed after Julius Caesar in 44 BC.[1][9] The family name may be a contraction of an Old Latin personal name *Iovilios (“descended from Jove”), or come from Ancient Greek ἴουλος (íoulos, “first down of the beard”).[1]

Earliest recorded meaning

The first hit in the CDH is the Semejanza del mundo of about 1223: anda el sol en todo el mes de jullio “the sun moves through the whole month of July”.[10] Corominas and the BDELC date the word to Berceo's Vida de San Millán (1220–1250).[3][4]

Semantic evolution

Covarrubias in 1611 explained that the month, the fifth counting from March, had lost the name Quintilis in honour of Julius Caesar, who was born in it.[11] Autoridades called it the fifth month in the first Roman calendar and the seventh in the later Roman and Church reckoning, with 31 days.[12] A record of 1554 from Peru names July together with its Inca name.[13] The word was borrowed into Tagalog as Hulyo and into other languages of the Philippines.[1]

Timeline

  • c. 1223 – the Semejanza del mundo has jullio.[10]
  • 1220–1250 – Berceo's Vida de San Millán has julio.[3][4]
  • 1255 – the first year of the word in the Old Spanish Textual Archive.[14]
  • c. 1495 – Nebrija gives Latin quintilis and iulius for julio mes.[15]
  • 1554 – the first record from the Americas, in Peru.[13]
  • 1611 – Covarrubias explains the name from Julius Caesar.[11]

Meanings

Noun

  1. July: the seventh month of the year, of 31 days.[5][1]

julio2 joule

Confidence
Established
Formation
Borrowing
First attested
1900s Pagés's dictionary
Borrowed from
English joule
Ultimate origin
English joule

Pronunciation

  • /ˈxuljo/, [ˈxu.ljo][1]

Forms

julio m (plural julios)[1]

Etymology

The word for the unit of energy is borrowed from English joule, which is the surname of the English physicist James Prescott Joule (1818–1889).[3][16][5][1] The DTME analyses the Spanish form as the name with the Latin ending -ium, and says that the unit was named by W. von Siemens in 1882.[17]

Earliest recorded meaning

Corominas dates the word to the beginning of the 20th century, in Pagés's dictionary.[3][16]

Timeline

  • 1882 – the unit is named after Joule.[17]
  • early 20th century – first record in Spanish, in Pagés's dictionary.[3][16]

Meanings

Noun

  1. (physics) The joule: the unit of work and energy of the International System, the work done by a force of one newton moving its point of application one metre in its own direction (symbol J).[5][1][18]

Usage notes

In physics the international name joule is also used beside julio.[19][18]

References

  1. ^ a b c d e f g h i j k l m Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ Diccionario del Español Medieval electrónico (DEMel), data publication 2026 (CC BY-SA), Universität Rostock
  3. ^ 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. 3, 537
  4. ^ a b c d e Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. julio
  5. ^ 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. julio
  6. ^ a b García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. julius
  7. ^ a b Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 3, 538
  8. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  9. ^ Gómez de Silva, Guido (1988), Breve diccionario etimológico de la lengua española, México: Fondo de Cultura Económica / El Colegio de México, p. 407
  10. ^ a b Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE
  11. ^ 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. 1025
  12. ^ Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 4, 330
  13. ^ a b 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. julio
  14. ^ 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
  15. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 365
  16. ^ a b c Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. julio II
  17. ^ a b Real Academia Nacional de Medicina (2011), Diccionario de términos médicos, Madrid: Editorial Médica Panamericana; online at https://dtme.ranm.es, p. s.v. julio
  18. ^ a b Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. julio
  19. ^ Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. julio

Related etymologies

  • rol · also from English
  • organismo · also from English
  • concreto · also from English
  • celo · also from English
  • ron · also from English
  • mango · also from English
  • sonar · also from English
  • agua · also from Latin
Cite this entry

“Julio.” Etymologically, 7 Nov. 2026, etymologically.com/es/julio. Accessed 7 Nov. 2026.

Last edited on . ·