Etymology and origin of the Portuguese word reino
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1200s More words from the 13th century
- Inherited from
- Latin regnum
- Ultimate origin
- Proto-Indo-European *h₃rḗǵs
Etymology tree
From the same root
Pronunciation
Forms
reino m (plural reinos)[1] In the 13th century the word was written reino, reyno and regno; later records have rejnos (1344), rregno (14th century) and reignos (15th century).[2][3] Houaiss also records an archaic form reame in the 15th century.[2]
Etymology
It is inherited from Latin rēgnum (“kingship, royal power; kingdom”), written Old Galician-Portuguese reino, Old Galician-Portuguese reyno and Old Galician-Portuguese regno in 13th-century texts.[2][3][1]
The same Latin word is Galician reino, Spanish reino, Italian regno and Catalan regne; French règne is a learned remaking of an older popular form.[1][4][5] The Latin noun is formed from rēx (“king”) with an adjective suffix -nus.[1] De Vaan traces it to Proto-Indo-European *h₃rḗǵs (“ruler, king”), the source of Sanskrit राजन् (rā́jan) and Old Irish rí as well.[6][1]
The regular outcome of Latin -gn- would have given *renho, as Nascentes notes.[7] He gives two explanations from the literature for the ⟨i⟩: the ⟨g⟩ was resolved into a vowel, as Leite de Vasconcelos and Nunes hold, or the word was influenced by rei, as Meyer-Lübke and Menéndez Pidal hold.[7] García de Diego also explains the Spanish and Portuguese form, in place of a regular *reno, by the influence of the word for “king”.[8] The old spelling ⟨regno⟩ is a Latinising one.[7]
Earliest recorded meaning
The Cantigas de Santa Maria speak of o reyno d'Aragon “the kingdom of Aragon” and of Paradise as o reino celestial “the heavenly kingdom”.[9] A cantiga d'escarnho of Afons' Eanes do Coton has o reino de Deus “the kingdom of God”.[9][10] The first records thus have both the political and the religious sense.[9]
Semantic evolution
Bluteau defined the word as one or more provinces subject to a king, and Morais added a state that once had its own king and was joined to another sovereign's realm.[11][12] In the colonial period o Reino meant Portugal itself, seen from Brazil and the other overseas lands, and Morais records reinol for a person who came from the Kingdom to the conquests.[2][12]
Natural history used the word for the great divisions of nature, reino animal, reino vegetal and reino mineral, and modern biology for the highest taxonomic rank.[2][13] In the north-east of Brazil reino is also a cheap mixture of parati spirit, and in the catimbó cults one of the divisions of the other world.[2][14] Silva Bastos records a Timor sense, a group of villages.[13] The word was borrowed into Tetum as reinu.[1]
Timeline
- 13th century – first records, as reino, reyno and regno.[2][3]
- 1344 – the spelling rejnos.[2]
- 15th century – the spelling reignos and the archaic form reame.[2]
- 1569 – Cardoso's dictionary translates reino as Latin regnum.[15]
- 1712–1728 – Bluteau defines it as provinces subject to one king.[11]
- 1789 – Morais records reinol, a person sent out from the Kingdom.[12]
- 1912 – Silva Bastos gives the natural-history sense and a Timor sense.[13]
Meanings
Noun
- A kingdom: a country or state ruled by a king or queen; a monarchy (monarquia).[2][16][1]
- (historical) o Reino: Portugal, as opposed to colonial Brazil and the other overseas possessions.[2][16]
- The subjects of a monarchy as a whole.[2][16]
- (figurative) A realm or domain where someone or something rules, or a sphere or field.[2][16]
- Each of the great divisions of nature studied by the natural sciences: reino animal, reino vegetal, reino mineral.[2][17]
- (biology) The highest taxonomic rank.[2][1]
- (religion) reino de Deus, reino dos céus: the kingdom of God, eternal life.[2]
- (north-eastern Brazil) A cheap mixture of parati spirit.[2][14]
Word family
- reinol
- pimenta-do-reino
Related words
Usage notes
In Trás-os-Montes reino is also the name of a long beam of a mill.[18]
References
- ^ a b c d e f g h i j k l Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ 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. reino
- ^ a b c Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. reino
- ^ 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. reino
- ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. règne
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c Nascentes, Antenor (1955), Dicionário etimológico da língua portuguesa, vol. 1: Nomes comuns, Rio de Janeiro (1st ed. 1932, preface by W. Meyer-Lübke), p. 438
- ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. regnum
- ^ a b c 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. reino
- ^ 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. reino
- ^ 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. reino
- ^ a b c 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, 314
- ^ a b c Silva Bastos, José Timóteo da (1912), Diccionario etymologico, prosodico e orthographico da lingua portugueza, Lisboa: Parceria António Maria Pereira, p. s.v. reino
- ^ a b Navarro, Fred (2004), Dicionário do Nordeste, São Paulo: Estação Liberdade, p. s.v. reino
- ^ Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. reino
- ^ a b c d Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. reino
- ^ Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. reino
- ^ Instituto da Lingua Galega, Tesouro do léxico patrimonial galego e portugués (TLPGP), Santiago de Compostela: Universidade de Santiago de Compostela, https://ilg.usc.gal/tesouro, p. s.v. reino
Related etymologies
Cite this entry
“Reino.” Etymologically, 15 Nov. 2026, etymologically.com/pt/reino. Accessed 16 Nov. 2026.
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