Etymology and origin of the Portuguese word interesse
- Confidence
- Established
- Formation
- Borrowing
- First attested
- 1400s More words from the 15th century
- Borrowed from
- Latin intersum
- Ultimate origin
- Latin intersum
Etymology tree
From the same root
Forms
interesse m (plural interesses)[1] Fifteenth-century texts spell it jnteresse, interese and ynterese.[2] A letter of 1538 has ymterese.[3]
Etymology
It is borrowed from Medieval Latin interesse (“compensation; interest on money”), the infinitive of the classical verb “to be between; to matter, concern” used as a noun.[4][2][1] Houaiss starts from the impersonal use of the verb, “it matters, it is in someone's interest”.[2] The verb is made of inter- (“between”) and sum (“to be”).[5][1]
Nascentes notes that the infinitive was used as a noun from the 13th century and came into Portuguese by the learned route.[6] In medieval Latin it meant the damages owed for breaking a contract, and the interest on a capital.[7][8] Bluteau, in the 18th century, already derived it from the Latin impersonal verb in phrases meaning “it matters to me”.[9]
The same noun is Spanish interés, first recorded in 1438.[10]
Earliest recorded meaning
Houaiss and Cunha date the word to the 15th century.[2][4] The oldest dictionaries give it the sense “profit, gain”: Barbosa (1611) and Pereira (1697) render it with Latin lucrum and quaestus.[11][12]
Semantic evolution
In the 16th century the word meant gain and advantage: in a pastoral eclogue Camões has a shepherdess say that she sought knowledge, not gain (Que buscava saber, não interesse).[13] Bluteau (1712–1728) defines it as the profit or advantage one draws or hopes for from something, and notes that in a phrase such as suâ interesse the same form is a Portuguese noun and a Latin verb.[9] Morais (1789) adds the legal sense, the sum of a lost profit owed by someone who does not pay a debt in time, and the phrase servir sem interesse “to serve without payment”.[14]
Figueiredo (1899) has the modern senses beside the old: selfish greed, importance, attraction and sympathy, zeal, and interest on capital.[15] The psychological sense, the attention a thing draws, is now the main one in the dictionaries of Portugal.[16][17]
Timeline
- 15th century – first records, spelt jnteresse, interese and ynterese.[2][4]
- 1538 – ymterese in a private letter.[3]
- 1611 – Barbosa renders it “profit” and lists interesseyro.[11]
- 1712–1728 – Bluteau derives it from Latin mea interest.[9]
- 1789 – Morais gives the legal sense “lost profit owed” and servir sem interesse.[14]
- 1899 – Figueiredo lists “selfish greed”, “attraction” and “interest on capital”.[15]
Meanings
Noun
- What is important, useful or advantageous to someone; benefit, advantage: por interesse da comunidade.[2][18]
- The curiosity or attention one feels for what seems worth notice: ouviu tudo com grande interesse.[2][16][1]
- The quality of something that holds the attention: um livro sem interesse.[2][16]
- Importance given to something.[2]
- Goodwill and concern for a person.[2][19]
- Attachment to one's own advantage; self-interest, greed.[2][20][1]
- A share in the profits of a firm.[2][17]
- (finance) Income from the interest on a capital; juro.[2][18]
Word family
- interessar
- interesseiro
- desinteresse
Related words
- interessante
- Spanish interés
References
- ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. interesse
- ^ 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. interesse
- ^ a b c Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. interesse
- ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. intersum
- ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. interesse
- ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill, p. s.v. interesse
- ^ du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre, p. s.v. interesse
- ^ 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. interesse
- ^ Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. interés
- ^ a b Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. interesse
- ^ Pereira, Bento (1697), Thesouro da lingoa portuguesa, in the 1697 edition of his Prosodia (1st ed. 1647; CLP transcription, Universidade de Aveiro), p. s.v. interesse
- ^ 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, 1142
- ^ 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. 1, 729
- ^ a b Figueiredo, Cândido de (1899), Novo diccionário da língua portuguesa, 1st ed., 2 vols., Lisboa: Tavares Cardoso & Irmão, p. s.v. interesse
- ^ 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. interesse
- ^ a b Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 5338
- ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. interesse
- ^ 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. interesse
- ^ Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. interesse
Related etymologies
Cite this entry
“Interesse.” Etymologically, 15 Nov. 2026, etymologically.com/pt/interesse. Accessed 16 Nov. 2026.
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