Etymology and origin of the Portuguese word presumir
- Confidence
- Established
- Formation
- Borrowing
- First attested
- 1200s a text Houaiss cites as InedAlc, spelt presume More words from the 13th century
- Borrowed from
- Latin praesumo
- Ultimate origin
- Latin sūmō
Etymology tree
From the same root
Pronunciation
Forms
presumir (first-person singular present presumo, first-person singular preterite presumi, past participle presumido)[1] Houaiss records the medieval spellings presume (13th century), presomiam and prosumir (15th century).[2]
Etymology
It is borrowed from Latin praesūmō (“to take beforehand; to anticipate, suppose”).[2][3][1] Nascentes calls it a semi-learned word and glosses the Latin verb “to take in advance”.[4][5] It corresponds to Spanish presumir.[6]
The Latin verb is formed from prae- (“before”) and sūmō (“to take”).[7][1] Its first sense was concrete, “to consume beforehand”, and the senses “to suppose, take for granted” and “to venture, dare” came later.[7][8][9] Wiktionary traces the simple verb back to *emō, from Proto-Indo-European *h₁em- (“to take”), and gives an earlier form *susmō from a compound with *sups- “under, up”.[1]
Earliest recorded meaning
Houaiss dates the verb to the 13th century, from a text he cites as InedAlc, in the spelling presume;[2][3] Cunha gives the 14th century.[2][3] The first sense he lists is “to draw a conclusion in advance, from signs and conjectures rather than proven facts”.[2]
Semantic evolution
The early dictionaries give the verb only the sense “to conjecture, suspect”: Cardoso (1569) renders it with Latin coniecto, Barbosa (1611) with coniicio and suspicor, and Bluteau with “to persuade oneself of something from signs or conjectures” and “to judge”.[10][11][12] Bluteau's examples are legal: what may or may not be presumed of a man who defended himself with arms.[12]
The intransitive and reflexive sense “to be conceited, to boast of oneself” is recorded by Silva Bastos in 1912 and is listed by Houaiss, Michaelis and the Porto dictionary today; it matches the sense of the noun presunção.[2][13][14][15] The participle presumido is dated 1813 by Cunha.[3]
Timeline
- 13th century – presume in a text Houaiss cites as InedAlc.[2]
- 14th century – Cunha's date for the verb.[3]
- c. 1450 – presumir in the Livro das três virtudes (witness after 1450).[16]
- 15th century – the spellings presomiam and prosumir.[2]
- 1569 – Cardoso's dictionary glosses the verb with Latin coniecto “I conjecture”.[10]
- 1588 – presume in a private letter.[17]
- 1611 – Barbosa adds the senses “to suppose, suspect”.[11]
- 1813 – first record of the participle presumido.[3]
- 1858 – first record of presumível.[18][3]
Meanings
Verb
- (transitive) To presume, to conjecture: to conclude in advance from signs rather than from proof: Presumo que o comboio vem atrasado.[2][19][20]
- (transitive) To suppose beforehand; to foresee, presuppose.[2][19]
- (transitive) To suspect, to distrust.[2][19][15]
- (transitive) To imagine without real grounds.[2]
- (intransitive, reflexive, with de) To be conceited, to boast of being something: presumir de poeta.[2][20][14]
Word family
- presumível
- presumido
Related words
References
- ^ a b c d e f g h 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. presumir
- ^ a b c d e f g Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. presumir
- ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. presumir
- ^ Nascentes, Antenor (1955), Dicionário etimológico da língua portuguesa, vol. 1: Nomes comuns, Rio de Janeiro (1st ed. 1932, preface by W. Meyer-Lübke), p. 415
- ^ 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. presumir
- ^ a b Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press, p. s.v. praesumo
- ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill, p. s.v. praesumere
- ^ a b Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. presumir
- ^ a b Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. presumir
- ^ 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. presumir
- ^ Silva Bastos, José Timóteo da (1912), Diccionario etymologico, prosodico e orthographico da lingua portugueza, Lisboa: Parceria António Maria Pereira, p. s.v. presumir
- ^ a b 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. presumir
- ^ a b Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 7460
- ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. presumir
- ^ 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. presumir
- ^ Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. presumível
- ^ a b c Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. presumir
- ^ a b Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. presumir
Related etymologies
Cite this entry
“Presumir.” Etymologically, 15 Nov. 2026, etymologically.com/pt/presumir. Accessed 16 Nov. 2026.
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