Etymologically

Etymology and origin of the Portuguese word assumir

Confidence
Established
Formation
Borrowing
First attested
1690 Manuel Fernandes, Alma Instruída More words from the 17th century
Borrowed from
Latin assumo
Ultimate origin
Latin sūmō
Etymology tree
inherited borrowed derived
Latin emō
Latin sūmō
Latin assūmō
English assume
Italian assumere
Portuguese assumir
Spanish asumir
From the same root
Latin adimō ← emō
Latin coëmō ← emō
Latin cōmō ← emō
Latin dēmō ← emō
Latin dirimō ← emō
Latin em ← emō
Latin ēmptiō ← emō
Latin ēmptor ← emō
Latin exemplum ← emō
Latin exēmptus ← emō
Latin eximō ← emō
Latin interimō ← emō
Latin praemium ← emō
Latin prōmō ← emō
Latin redimō ← emō
Spanish ejemplo ← emō
Latin absūmō ← sūmō
Latin cōnsūmō ← sūmō
Latin dēsūmō ← sūmō
Latin īnsūmō ← sūmō
Latin praesūmō ← sūmō
Latin resūmō ← sūmō
Latin sūmptus ← sūmō
English unassuming ← assūmō
Latin assūmptiō ← assūmō

Pronunciation

  • Brazil: /a.suˈmi(ʁ)/, [a.suˈmi(h)][1]
  • São-Paulo: /a.suˈmi(ɾ)/[1]
  • Rio-de-Janeiro: /a.suˈmi(ʁ)/, [a.suˈmi(χ)][1]
  • Caipira: /a.suˈmi(ɻ)/[1]

Forms

assumir (first-person singular present assumo, first-person singular preterite assumi, past participle assumido)[1]

Etymology

It is borrowed from Latin assūmō (“to take up, take to oneself”), first recorded in 1690.[2][3][4][1] Nascentes calls it a semi-learned word.[5] The Latin verb is formed from ad- and sūmō (“to take”).[6][1]

Wiktionary analyses the simple verb as sub and emō (“to buy, take”), from Proto-Italic *emō and Proto-Indo-European *h₁em- (“to take”).[1] The same Latin verb is Spanish asumir.[7]

Earliest recorded meaning

Machado and Houaiss take the first record from Manuel Fernandes's Alma Instruída (1690), in a theological sense: God decreed to come down to the state of creatures and unir ou assumir a si alguma natureza creada “to unite or take on himself a created nature”.[4][2] A private letter of the same year writes asumir.[8]

Semantic evolution

Morais (1789) defines it as “to take, attribute to oneself, arrogate”.[9] Vieira records it only as a synonym of consumir in a pharmacopoeia, and notes that the Academy's dictionary lacks it.[10] The original Caldas Aulete has taking on a serious air, from Rebelo da Silva and Camilo, and taking up a high office or power, from Garrett, and gives the irregular participle assunto beside assumido.[11]

Modern Portuguese uses it above all for taking on a responsibility or an office, for acknowledging something as one's own, and, reflexively and informally, for coming out as gay or bisexual.[2][1][12]

Timeline

  • 1690 – first record, in the Alma Instruída.[4][2]
  • 1690 – asumir in a private letter.[8]
  • 1789 – Morais defines it as “to take, arrogate”.[9]
  • 1858 – Cunha's first date for assumptivo.[3]
  • 1871–1874 – Vieira records it as a pharmaceutical synonym of consumir.[10]

Meanings

Verb

  1. To assume, take upon oneself (a charge, a duty, a responsibility).[2][13][1]
  2. To take up (an office or power): assumir a presidência.[13][11]
  3. To take on (an air, an appearance, a form).[2][13]
  4. To come to have, reach: O incêndio assumiu grandes proporções.[2][13]
  5. To acknowledge as one's own (a fault, an act, its consequences).[1][11][12]
  6. (reflexive) To declare oneself, show oneself as;[2][1][12] (informal) to come out as gay or bisexual.[2][1][12]
  7. (philosophy, mathematics) To suppose, take as true.[12]
  8. (reflexive) To stand up straight.[2]

Word family

  • assumível

References

  1. ^ a b c d e f g h i j k l m Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. assumir
  3. ^ a b Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. assumir
  4. ^ a b c Machado, José Pedro (1987), Dicionário etimológico da língua portuguesa, 4th ed., 5 vols., Lisboa: Livros Horizonte, p. s.v. assumir
  5. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. assumir
  6. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. assūmō
  7. ^ 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. asumir
  8. ^ 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. assumir
  9. ^ 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, 134
  10. ^ 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. 1, 44
  11. ^ a b c 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. assumir
  12. ^ a b c d e Wikcionário (Portuguese Wiktionary), pt.wiktionary.org, p. s.v. assumir
  13. ^ a b c d Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. assumir

Related etymologies

Cite this entry

“Assumir.” Etymologically, 15 Nov. 2026, etymologically.com/pt/assumir. Accessed 16 Nov. 2026.

Last edited on . ·