Etymologically

Etymology and origin of the Portuguese word fogo

Confidence
Established
Formation
Inherited
First attested
1200s Cantigas de Santa Maria More words from the 13th century
Inherited from
Latin focus
Ultimate origin
Latin focus
Etymology tree
inherited borrowed derived
Latin focus
Aromanian foc
Catalan foc
French feu
Italian fuoco
Portuguese fogo
Romanian foc
Spanish fuego
English focus
Derivations
From the same root
English curfew ← focus
French couvre-feu ← focus
Latin focālis ← focus
Latin focāris ← focus
Latin focārius ← focus
Latin foculus ← focus
Italian infuocare ← fuoco
Romanian focar ← foc
English focal ← focus

Pronunciation

  • Brazil: /ˈfo.ɡu/[1]
  • Portugal: /ˈfo.ɡu/, [ˈfo.ɣu][1]
  • Portugal, Southern: /ˈfo.ɡu/[1]
  • /ˈfo.ɡʷ/[1]

Forms

fogo m (plural fogos, metaphonic)[1] The singular has closed /o/ and the plural fogos open /ɔ/.[2][1]

Etymology

It is inherited from Latin focus (“hearth, fireplace”), written Old Galician-Portuguese fogo in the oldest texts.[2][3][4][1] It is the popular outcome of the Latin word, and foco is its learned doublet.[2][1] In Latin the word meant the hearth; it was used in the sense of ignis (“fire”) from the imperial period, at least from the 4th century.[5][6]

The same Latin word is Galician fogo, Spanish fuego, Catalan foc, Occitan fuòc, French feu, Italian fuoco and Romanian foc.[1][7]

The origin of the Latin word is uncertain, and de Vaan finds no convincing etymology: a link with fax (“torch”) is impossible in form, and Hamp's explanation of the Latin word as a back-formation from foculus (“small stove”) runs into chronological problems.[8] Wiktionary records comparisons with բոց (bocʻ, “flame”), with *bʰeh₂- (“to shine”) and with *dʰegʷʰ- (“to burn”).[1]

Earliest recorded meaning

Latin charters of 994 and 998 already have the Romance spelling: et inde in fogo lopare and pro fogo que cedarunt et fecerunt damno “for the fire that they set and did harm with”.[9][2] In the 13th-century Cantigas de Santa Maria the word means fire, including the fire of hell (fog'infernal) and the flames of Mount Etna, and it names a disease, fogo de San Marçal or mal do fogo.[9]

Semantic evolution

Medieval texts use fogo de San Marçal and fogo salvage for a skin disease with blisters.[9][10] From the sense “hearth” came “dwelling, household”: in 1340 the fogo or paga dos fogos was a tax paid by every householder of Chaves.[11][2] The Spanish word has the same sense, which DCECH calls common to the western Romance languages.[6]

Cardoso (1569) and Barbosa (1611) render the word by Latin ignis.[12][13] Bluteau derives it from Greek phôs “light” or, as others held, from focus.[14] Figurative senses (brilliance, ardour, passion, creative inspiration), the gunfire of firearms and the command fogo! all go with the word today, and Brazilian Portuguese adds “drunkenness” and “sugar-cane spirit”.[2] The island of Fogo in Cape Verde is named after the fire of its volcano.[15]

Timeline

  • 994 – a Latin charter has in fogo lopare, and one of 998 pro fogo.[9]
  • 13th century – the Cantigas de Santa Maria use fogo for fire and in the disease name fogo de San Marçal.[9][3]
  • 1340 – fogo, a hearth tax of Chaves.[11]
  • c. 1430 – first record in the CTA prose corpus, in the Horto do Esposo.[16]
  • 1569 – Cardoso's dictionary renders it as Latin ignis.[12]
  • 1712–1728 – Bluteau discusses its etymology.[14]

Meanings

Noun

  1. fire: the heat and light given off by a burning substance; lume.[2][17][1]
  2. A flame; a blaze or incêndio.[2][1]
  3. A place where a fire is made: a hearth, lareira or stove.[2][17]
  4. A dwelling, a household.[2][1]
  5. The firing of guns: Recuaram sob fogo cerrado.[2][1]
  6. Death at the stake; fogueira.[2]
  7. (figurative) Brilliance; ardour, passion or creative inspiration; sexual excitement.[2][1]
  8. A lighter or match: Tens fogo?[2][1]
  9. (colloquial) A tense situation;[1][18] (Brazil, informal) someone or something hard to deal with.[1][18]
  10. (Brazil, informal) drunkenness; sugar-cane spirit, cachaça.[2]
  11. (in the plural, fogos) fireworks, fogo de artifício.[2][1]

Interjection

  1. (military) The command to shoot: fogo![2][19][1]
  2. A cry raising the alarm at a fire.[2]
  3. (Portugal, colloquial) An exclamation of surprise, annoyance or pain.[19][1]

Word family

  • afogueado
  • esfoguear
  • fogacho
  • fogagem
  • fogal
  • fogão
  • fogareiro
  • fogaréu
  • fogoso
  • foguista
  • refogar
  • refogado
  • enfogar

References

  1. ^ a b c d e f g h i j k l m n o p q r s t u Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q r Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. fogo
  3. ^ a b Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. fogo
  4. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. fogo
  5. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. feu
  6. ^ a b Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 2, 968
  7. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. focus
  8. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill, p. s.v. focus
  9. ^ a b c d e Instituto da Lingua Galega, Dicionario de dicionarios do galego medieval (DDGM), ed. Ernesto González Seoane, Santiago de Compostela: Universidade de Santiago de Compostela, https://ilg.usc.gal/ddgm, p. s.v. fogo
  10. ^ Universo Cantigas: Glosario da poesía medieval profana galego-portuguesa, A Coruña: Instituto da Lingua e Literatura (ILLA), Universidade da Coruña, https://www.universocantigas.gal, p. s.v. fogo
  11. ^ a b Viterbo, Joaquim de Santa Rosa de (1798–1799), Elucidario das palavras, termos e frases que em Portugal antiguamente se usárão, 2 vols., Lisboa: Simão Thaddeo Ferreira, p. 1, 469
  12. ^ a b Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. fogo
  13. ^ Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. fogo
  14. ^ a b Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. fogo
  15. ^ Nascentes, Antenor (1952), Dicionário etimológico da língua portuguesa, vol. 2: Nomes próprios, Rio de Janeiro, p. s.v. fogo
  16. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. fogo
  17. ^ a b Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. fogo
  18. ^ a b Wikcionário (Portuguese Wiktionary), pt.wiktionary.org, p. s.v. fogo
  19. ^ a b Academia das Ciências de Lisboa, Dicionário da Língua Portuguesa, revised online edition (2023–) of the Dicionário da Língua Portuguesa Contemporânea (2001), https://dicionario.acad-ciencias.pt, p. s.v. fogo

Related etymologies

Cite this entry

“Fogo.” Etymologically, 15 Nov. 2026, etymologically.com/pt/fogo. Accessed 16 Nov. 2026.

Last edited on . ·