Etymology and origin of the Portuguese word mau
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1200s More words from the 13th century
- Inherited from
- Latin malus
- Ultimate origin
- Latin malus
Etymology tree
From the same root
Forms
mau (feminine má, masculine plural maus, feminine plural más, comparable, comparative pior, superlative o pior or péssimo)[1] Old Galician-Portuguese wrote mao, feminine maa, also maao.[2] Houaiss records maas, mááos and maos in the 13th century and mãa in the 14th.[3] The dictionaries spell the word mao from Cardoso to Bluteau, and Vieira still heads it mao, ou mau.[4][5][6]
Etymology
It is inherited from Latin malus (“bad”), written Old Galician-Portuguese mao in the oldest texts.[3][1][7][2] The Latin -l- between vowels is lost in the Galician-Portuguese form, which has the same shape in Galician, beside the Spanish form with -l-.[8]
The same Latin word is Galician mao, Spanish malo, Catalan mal, French mal and Italian malo.[9][1]
The Latin word goes back to *malo-;[10] Oscan had a word of the same meaning.[10] A link with *mol-o- (“bad”) and with μέλεος (méleos, “idle; unhappy”) and mẽlas (“lie”) has been proposed, but de Vaan considers it uncertain, since these are isolated words in different branches.[10][1]
Earliest recorded meaning
Houaiss dates the word to the 13th century.[3] The Cantigas de Santa Maria already use it of people and of things: mui maa noite “a very bad night”, maos sabores, and lugar mao.[2]
Semantic evolution
Medieval texts have the word for what is evil and cruel and for what is hard: mao de contar in the Crónica Troiana means “hard to tell”, and the cantigas d'amor have seer mau de “to be difficult”.[2] The phrases en mao ponto and en mao dia expressed bad luck, and notarial deeds of 1390 promise to keep a contract sem mao engano “without deceit”.[2]
Bluteau's examples speak of a wicked man and of evil ways.[5] Modern dictionaries add a person who does a job badly, poor quality in things, and a sense “naughty” said of children.[3][11] The word is also a noun, “a bad person”, and an interjection of disapproval.[1][12] It passed into Kabuverdianu and Guinea-Bissau Creole as mau.[1]
Timeline
- 13th century – first records, spelt mao, maas and maos.[3][2]
- 1390 – sem mao engano in notarial deeds of Noia.[2]
- 1513 – the spelling mau in the Livro dos Mártires.[13]
- 1569 – Cardoso's dictionary heads the word mao.[4]
- 1712–1728 – Bluteau heads it mao.[5]
- 1871–1874 – Vieira gives both spellings, mao, ou mau.[6]
Meanings
Adjective
- bad, of poor quality; faulty, badly made: um mau vinho.[3][11][12][1]
- evil, wicked; given to doing harm: um homem mau.[3][11][1]
- Unkind, bad-tempered: mau feitio.[3]
- harmful; that does harm to others or oneself: um mau conselho.[3][11][1]
- Not good at what one does: um mau aluno.[3][12]
- Hard to overcome or to bear: um caminho mau.[3][14]
- Unfortunate, ominous: más notícias.[3][11]
- (of children) naughty.[11]
Noun
Interjection
Word family
- má-criação
- má-formação
- mau-olhado
- maus-tratos
- mauzinho
Related words
References
- ^ a b c d e f g h i j k l m Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ 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. mao
- ^ a b c d e f g h i j k l m n Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. mau
- ^ a b Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. mao
- ^ a b c Bluteau, Raphael (1712–1728), Vocabulario portuguez e latino, 8 vols. + 2 supplement vols., Coimbra / Lisboa (CLP transcription, Universidade de Aveiro), p. s.v. mao
- ^ 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. 4, 113
- ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. mau
- ^ García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. malus
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 5273
- ^ a b c 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. malus
- ^ a b c d e f Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. mau
- ^ a b c d e f 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. mau
- ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. mau
- ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. mau
Related etymologies
Cite this entry
“Mau.” Etymologically, 15 Nov. 2026, etymologically.com/pt/mau. Accessed 16 Nov. 2026.
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