Etymologically

Etymology and origin of the Portuguese word sinal

Confidence
Established
Formation
Inherited
First attested
1200s the cantigas More words from the 13th century
Inherited from
Latin signalis
Ultimate origin
Latin signum
Etymology tree
inherited borrowed derived
Latin sīgnum
Aromanian semnu
French seing
Italian segno
Portuguese senha
Portuguese sino
Romanian semn
Spanish seña
English sign
French signe
Spanish signo
Latin signālis
Portuguese sinal
From the same root
English signet ← sīgnum
Latin antesignanus ← sīgnum
Latin īnsignis ← sīgnum
Latin sigillum ← sīgnum
Latin signifer ← sīgnum
Latin significō ← sīgnum
Latin signō ← sīgnum
Romanian însemn ← semn
Romanian însemna ← semn
Romanian semna ← semn
English signage ← sign
Latin signāle ← signālis

Pronunciation

  • Brazil: /siˈnaw/, [siˈnaʊ̯][1]
  • Portugal: /siˈnal/, [siˈnaɫ][1]
  • Portugal, Southern: /siˈna.li/[1]

Forms

sinal m (plural sinais)[1] The old texts write sinal and signal, plural sinaes;[2][3][4][5] Post Scriptum has synall in a letter of 1538.[2][3][4][5] Feijó (1734) gives sinal and sináes as the spellings of usage, and Silva Bastos (1912) judges sinal as good as or better than signal.[6][7]

Etymology

It is inherited from Late Latin signālis (“serving as a sign”), an adjective later used as a noun, written Old Galician-Portuguese sinal in the oldest texts.[3][2][1] Nascentes and Aurélio start from the Vulgar Latin noun signale, the neuter of the adjective.[8][9] The adjective is formed from signum (“mark, sign”).[1][10]

The same Latin noun is Spanish señal, Catalan senyal, Occitan senhal and Italian segnale; in Spanish it became feminine.[11][12] Within Portuguese the same family has signo from the Latin noun, and senha and sina from its plural.[2]

De Vaan derives the Latin noun from Proto-Indo-European *sek(h₂)-no- (“cut”), related to secō (“to cut”): a sign was first something cut or carved;[13][1] Wiktionary also mentions *sekʷ- (“to follow”).[13][1]

Earliest recorded meaning

Lorenzo's chronology finds sinales beside signales in a Latin charter of 818, and Houaiss dates the word to 1130 from another Latin document.[4][3] In the 13th-century cantigas it means a mark or point of reference, a feature of the face or body, the arms on a shield, and a deposit paid on a purchase: in a cantiga of Lopo Liaz someone dobr' o sinal, pays the deposit twice over.[4][14]

Semantic evolution

Medieval documents also use sinal for a piece of movable property: leases of 1215, 1384 and 1404 require the best sinal a tenant owns as a death duty, and sinal do juiz was a judge's seal.[15] In the cantigas parar sinal meant “to serve a legal summons”.[14] The Crónica Troiana has the senses “gesture” and “omen”.[4] Barbosa (1611) records fazer seu sinal “to sign”, and Morais (1789) defines the word as anything that brings another to mind, whether by a natural connection, like smoke for fire, or by convention.[16][17] Houaiss dates the medical sense, an objective symptom, to the 1950s; modern technical uses include the signal of telecommunications and the sign of mathematics.[3][1]

Timeline

  • 818 – sinales in a Latin charter.[4]
  • 1130 – Houaiss's date for the word, from a Latin document.[3]
  • 13th century – sinal and signal in the cantigas, for a mark, a facial feature and a deposit.[4][2]
  • 1215 – sinal “a piece of movable property” in a document of the Benedictines of Porto.[15]
  • c. 1430 – first record in the CTA, in the Horto do Esposo.[18]
  • 1611 – Barbosa records fazer seu sinal “to sign”.[16]
  • 1789 – Morais distinguishes natural and conventional signs.[17]
  • 1950s – the medical sense “clinical sign”.[3]

Meanings

Noun

  1. A sign, an indication that allows one to know, recognise or foresee something: sinais de chuva.[3][9][1]
  2. A signal agreed between people, or used to send orders and warnings at a distance; the bell that marks the start and end of lessons.[3][9][1]
  3. A gesture: Fez-me sinal para entrar.[3][1]
  4. A trace, mark or vestige left by someone or something.[3][19]
  5. A mole or spot on the skin; a scar.[3][20][1]
  6. (medicine) An objective sign of a disease observed by a doctor.[3][21]
  7. An omen, a portent.[3][22]
  8. A deposit, money or goods given to secure a contract or a purchase.[3][1]
  9. A signature; a notary's mark.[3][20]
  10. A traffic light; a road sign.[1]
  11. (telecommunications) A signal carrying information.[3][1]
  12. (mathematics) A sign such as + or −.[1]

Word family

  • assinalar
  • sinalizar
  • sinalização
  • sinalizador

References

  1. ^ a b c d e f g h i j k l m n o p q Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. signo
  3. ^ a b c d e f g h i j k l m n o p q Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. sinal
  4. ^ a b c d e f g 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. sinal
  5. ^ a b CLUL (ed.) (2014), P.S. Post Scriptum: Arquivo Digital de Escrita Quotidiana em Portugal e Espanha na Época Moderna, Lisboa: Centro de Linguística da Universidade de Lisboa, http://ps.clul.ul.pt, p. s.v. sinal
  6. ^ 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. sinal
  7. ^ Silva Bastos, José Timóteo da (1912), Diccionario etymologico, prosodico e orthographico da lingua portugueza, Lisboa: Parceria António Maria Pereira, p. s.v. sinal
  8. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. sinal
  9. ^ a b c Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. sinal
  10. ^ 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. señal
  11. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. signale
  12. ^ Nascentes, Antenor (1955), Dicionário etimológico da língua portuguesa, vol. 1: Nomes comuns, Rio de Janeiro (1st ed. 1932, preface by W. Meyer-Lübke), p. 471
  13. ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  14. ^ a b 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. sinal
  15. ^ 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. 2, 325
  16. ^ a b Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. sinal
  17. ^ 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, 402
  18. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. sinal
  19. ^ Aulete, Francisco Júlio Caldas, Dicionário contemporâneo da língua portuguesa (1st ed. 1881), online as Aulete Digital, Rio de Janeiro: Lexikon, https://aulete.com.br, p. s.v. sinal
  20. ^ a b Michaelis: Moderno Dicionário da Língua Portuguesa, São Paulo: Melhoramentos (online as Michaelis Dicionário Brasileiro da Língua Portuguesa, https://michaelis.uol.com.br), p. s.v. sinal
  21. ^ 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. sinal
  22. ^ Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 8509

Related etymologies

Cite this entry

“Sinal.” Etymologically, 15 Nov. 2026, etymologically.com/pt/sinal. Accessed 16 Nov. 2026.

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