Etymology and origin of the Portuguese word casa
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1221 More words from the 13th century
- Inherited from
- Latin casa
- Ultimate origin
- Latin casa
Etymology tree
From the same root
Forms
casa f (plural casas)[1] Houaiss records quasa in 1278, caza in 1352 and cassa in the 14th century;[2][1] Wiktionary lists caza.[2][1] A short form cas is found in the cantigas.[3]
Etymology
It is inherited from Latin casa (“hut, cottage”), written Old Galician-Portuguese casa in the oldest texts.[2][4][1] In Latin the word meant a humble dwelling or hovel; the ordinary word for “house” was domus.[2][5]
The same Latin word is Galician casa, Spanish casa, Catalan casa, Italian casa and Romanian casă, and French chez (“at the house of”) continues it.[6][7][1] Spanish has a reduced form in the phrase en cas de (“at the house of”).[8]
The origin of the Latin word is uncertain.[9][1] An older view derives it from *kat- (“to plait”); de Vaan finds a link with European words for “hut” from *ket- or *kot- also possible, but because of the Latin /a/ and the single /s/ after a short vowel he thinks it more likely a loanword.[9][1]
Earliest recorded meaning
Latin charters already have the word in its Romance sense: casas in 870 and kasa in 906, Lorenzo notes.[10] Houaiss dates the Portuguese word to 1221, from Cunha's index of medieval Portuguese.[2] The Cantigas de Santa Maria use it for a dwelling (levó-o a ssa casa “took him to his house”) and also for a room (hũa casa escura “a dark room”).[10]
Semantic evolution
In the Middle Ages the plural casas was often used for one building, as in Spanish;[8] Corominas cites a 13th-century Galician-Portuguese line, aquelas casas u mia senhor vi “that house where I saw my lady”.[8] Barbosa (1611) has the phrases casa d'esgrima “fencing school”, casa de relação “high court” and casa de mancebia “brothel”.[11] Folqman (1755) has casa de botão “buttonhole” and casa “family, lineage”.[12]
In Portugal the word also means a room of a dwelling (casa de banho “bathroom”, casa de jantar “dining room”).[2] Other senses are a commercial firm, a public office (Casa da Moeda “the Mint”), a square of a chessboard, a decimal place, and a decade of age (na casa dos trinta “in one's thirties”).[2][1]
The word passed into the creoles: kasa in Kabuverdianu and Guinea-Bissau Creole, kaza in Kristang and ka in Papiamentu.[1]
Timeline
- 870 – casas in a Latin charter.[10]
- 1221 – first record of the Portuguese word.[2]
- 1278 – the spelling quasa.[2]
- 1352 – the spelling caza.[2]
- c. 1400 – a fragment of a Flos Sanctorum (witness 1380–1425), the first CTA text with the word.[13]
- 1611 – Barbosa lists casa d'esgrima, casa de relação and casa de mancebia.[11]
- 1755 – Folqman lists casa de botão “buttonhole”.[12]
Meanings
Noun
- A house, a building for people to live in.[2][1][14]
- (Portugal) A room of a dwelling: casa de banho.[2][14]
- home, one's own dwelling: Ela já voltou para casa.[1][15]
- The household or family; a noble or royal dynasty: a Casa de Bragança.[2][1]
- The goods and affairs of a household.[2]
- A commercial firm or shop; a public office.[2][1][15]
- A compartment of a box or shelf; a square of a chessboard or of a printed form.[2][1]
- A buttonhole.[2][16]
- A decimal place; a decade of age: na casa dos quarenta.[2][1]
- The audience at a show: casa cheia.[2]
- (church) A convent or monastery.[2]
Word family
- casinha
- casarão
- casebre
- caseiro
- casario
- casar
- casamento
- casado
- casamenteiro
- casadouro
Related words
Usage notes
Wiktionary lists many compounds, such as casa de câmbio “bureau de change”, casa de campo “country house” and casa de saúde “private hospital”.[1] Schlee records the gaúcho phrase ser de casa “to be one of the family, stand on no ceremony”.[17]
References
- ^ a b c d e f g h i j k l m n o p q r 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 r s t Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. casa
- ^ 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. casa
- ^ Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. casa
- ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
- ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. chez
- ^ a b c Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 1, 901
- ^ 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
- ^ 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. casa
- ^ a b Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. casa
- ^ a b Folqman, Carlos (1755), Diccionario portuguez, e latino, Lisboa: Régia Officina Silviana (CLP transcription, Universidade de Aveiro), p. s.v. casa
- ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. casa
- ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. casa
- ^ a b Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 1855
- ^ 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. casa
- ^ Schlee, Aldyr Garcia (2019), Dicionário da Cultura Pampeana Sul-Rio-Grandense, 2 vols., Pelotas: Fructos do Paiz, p. s.v. casa
Related etymologies
Cite this entry
“Casa.” Etymologically, 15 Nov. 2026, etymologically.com/pt/casa. Accessed 16 Nov. 2026.
Last edited on . ·