Etymologically

Etymology and origin of the Portuguese word legal

Confidence
Established
Formation
Borrowing
First attested
1200s More words from the 13th century
Borrowed from
Latin legalis
Ultimate origin
Latin lēx
Etymology tree
inherited borrowed derived
Latin lēx
French loi
Italian legge
Portuguese lei
Romanian lege
Spanish ley
Latin lēgālis
French loyal
Romanian loial
Portuguese leal
Spanish leal
English legal
Italian legale
Portuguese legal
Spanish legal
From the same root
Latin exlēx ← lēx
Latin lēgifer ← lēx
Latin lēgislātiō ← lēx
Latin lēgislātor ← lēx
Latin legista ← lēx
Latin lēgitimus ← lēx
Latin legō ← lēx
Latin prīvilēgium ← lēx
French loyauté ← lēgālis
Latin illēgālis ← lēgālis
Latin lēgālitās ← lēgālis
Romanian ilegal ← lēgālis
English loyalist ← loyal
French déloyal ← loyal
Romanian loialitate ← loyal
Portuguese lealdade ← leal
English legalize ← legal
Italian illegale ← legale
Spanish legalidad ← legal

Pronunciation

  • Brazil: /leˈɡaw/, [leˈɡaʊ̯][1]
  • Portugal: /lɨˈɡal/, [lɨˈɣaɫ][1]
  • Portugal, Southern: /lɨˈɡa.li/[1]
  • Northeast-Brazil: /lɛˈɡaw/ [lɛˈɡaʊ̯][1]

Forms

legal m or f (plural legais, comparable, comparative mais legal, superlative o mais legal or legalíssimo, diminutive legalzinho, augmentative legalzão)[1]

Etymology

It is borrowed from Latin lēgālis (“of the law, legal”), from lēx (“law”) and the suffix -ālis.[2][3][1][4] It is the learned doublet of leal “loyal”, the popular outcome of the same Latin word.[2][5][1]

Other Romance languages have the same pair: Spanish legal and Spanish leal, French légal and French loyal, Italian legale and Italian leale.[6][7][8]

De Vaan reconstructs a Proto-Italic root noun *lēg- (“law”), perhaps a “collection” of rules, and doubts that it existed in Proto-Indo-European.[9]

Earliest recorded meaning

Houaiss dates the word to the 13th century and Cunha to the 15th, with the sense “of the law, according to the law”.[2][3]

Semantic evolution

Bluteau's dictionary (1712–1728) defines it as concerning or conforming to the laws, and explains parentesco legal as the kinship created by adoption.[10] Morais (1789) gives “according to the laws” and “introduced by law”.[11] Vieira adds dia legal, a day reckoned from eve to eve.[12] The DLP also records a religious sense, “of the law of Moses”.[13]

In informal Brazilian Portuguese the word took the sense “in order, all right” and then became an all-purpose word of approval, “good, nice, cool”, said of people and things alike; it is also an adverb, “very well”.[2][14][15][1] It takes the augmentative legalzão and the diminutive legalzinho.[1] Estraviz records the Brazilian sense “excellent” in Galician too.[16]

Timeline

  • 13th century – Houaiss's first date.[2]
  • 15th century – Cunha's first date.[3]
  • 1712 – Bluteau explains parentesco legal.[10]
  • 1734 – Feijó lists legal, “what conforms to the laws”.[17]
  • 1789 – Morais's dictionary.[11]
  • 1871 – Vieira lists dia legal.[12]

Meanings

Adjective

  1. Relating to the law: medicina legal.[2][14][1]
  2. lawful, in accordance with or laid down by law: um contrato legal.[13][15]
  3. (religion) Of the law of Moses.[13]
  4. (Brazil, informal) In order, all right: Com o remédio ele já ficou legal.[2][14]
  5. (Brazil, informal) cool, nice, good: said of a person who is kind or friendly, or of a thing that is pleasant or interesting: Que professora legal![2][14][15][1]

Adverb

  1. (Brazil, informal) Very well: A viagem correu legal.[2][14]

Word family

  • legalmente

References

  1. ^ a b c d e f g h i j k Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. legal
  3. ^ a b c Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. legal
  4. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. lēgālis
  5. ^ Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. leal
  6. ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. legalis
  7. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. loyal
  8. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. legalis
  9. ^ 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. lēx
  10. ^ 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. legal
  11. ^ a b Silva, António de Morais (1789), Diccionario da lingua portugueza composto pelo padre D. Rafael Bluteau, reformado, e accrescentado, 2 vols., Lisboa: Simão Thaddeo Ferreira, p. 2, 12
  12. ^ a b Vieira, Frei Domingos (1871–1874), Grande Diccionario Portuguez ou Thesouro da lingua portugueza, 5 vols., Porto: Ernesto Chardron e Bartholomeu H. de Moraes, p. 3, 1277
  13. ^ a b c 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. legal
  14. ^ a b c d e Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. legal
  15. ^ a b c Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. legal
  16. ^ Estraviz, Isaac Alonso, Dicionário Estraviz, https://estraviz.org, p. s.v. legal
  17. ^ Feijó, João de Morais Madureira (1734), Orthographia, ou Arte de escrever, e pronunciar com acerto a lingua portugueza, Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. legal

Related etymologies

Cite this entry

“Legal.” Etymologically, 15 Nov. 2026, etymologically.com/pt/legal. Accessed 16 Nov. 2026.

Last edited on . ·