Etymologically

Etymology and origin of the Portuguese word grumo

Confidence
Probable
Formation
Inherited
First attested
1707 More words from the 18th century
Inherited from
Latin grumus
Ultimate origin
Latin grūmus
Etymology tree
inherited borrowed derived
Latin grūmus
Italian grumo
Portuguese grumo
Romanian grum

Pronunciation

  • Brazil: /ˈɡɾũ.mu/[1]
  • Portugal: /ˈɡɾu.mu/[1]

Forms

grumo m (plural grumos)[1]

Etymology

It is inherited from Latin grūmus (“heap of earth, hillock”), according to Wiktionary and the REW, which list the word among the Romance outcomes of the Latin noun.[1][2] Houaiss, Cunha and Nascentes give the same etymon.[3][4][5] The word is first recorded only in 1707, and Bluteau already describes it as taken from the Latin.[3][6]

The same Latin word is Spanish grumo, Catalan grum and Italian grumo; the REW glosses the Spanish and Portuguese words “small lump”.[2] In Galician there are grumo and gromo, the latter above all for a bud or shoot.[7][8] French grumeau comes from a diminutive of the Latin noun.[9]

De Vaan reconstructs Proto-Italic *grōmo- (“heap”) and connects the Latin word, without certainty, with gremium (“lap”) and with Old Church Slavonic грамада (gramada, “heap, pile”).[10] Wiktionary traces it to Proto-Indo-European *gar- (“to tie, bind together”).[1]

Earliest recorded meaning

Houaiss dates the word to 1707.[3] In Bluteau's dictionary it is a small portion of clotted blood, or of milk hardened in the stomach, in the form of little grains, and he quotes a surgical manual on the grumos of blood from a ruptured vein.[6]

Semantic evolution

The Latin noun meant a heap of earth or hillock; in Ibero-Romance it passed to the sense of a cluster of things packed together, and so to a small clot.[11][10] In Portuguese the word long belonged to medicine: Morais (1813) labels it a medical term for a little head of curdled blood or milk that blocks the mouth of a vessel, and Vieira adds a pharmacists' sense, the lumps that keep a medicine from being even.[12][13] Modern dictionaries define it as a granule, a small clot of albumin, fibrin or casein, and a lump in a badly mixed paste.[3][14][15] In regional use in Portugal it also names the bud of a tree, as Galician gromo does.[16][17][8]

Timeline

  • 1707 – first record.[3]
  • 1712–1728 – Bluteau defines grumo as clotted blood or hardened milk in small grains.[6]
  • 1813 – Morais enters it as a medical term.[4][12]
  • 1873 – Vieira adds the pharmacists' sense of lumps in a medicine.[13]

Meanings

Noun

  1. A tiny grain; a granule (grânulo).[3][18][1]
  2. A cluster of small grains or particles; a lump in a paste or cream that has not dissolved: A papa ficou cheia de grumos.[3][15][19]
  3. A small clot, especially of albumin, fibrin or casein.[3][14][16]
  4. (Portugal, regional) A bud or shoot on a tree.[14][16][17]

Word family

  • grumoso
  • Latin grūmus
  • Spanish grumo
  • Galician gromo

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 3889
  3. ^ a b c d e f g h Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. grumo
  4. ^ a b Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. grumo
  5. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. grumo
  6. ^ 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. grumo
  7. ^ Estraviz, Isaac Alonso, Dicionário Estraviz, https://estraviz.org, p. s.v. grumo
  8. ^ a b Estraviz, Isaac Alonso, Dicionário Estraviz, https://estraviz.org, p. s.v. gromo1
  9. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. grumeau
  10. ^ 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
  11. ^ Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 3, 227
  12. ^ a b Silva, António de Morais (1813), Diccionario da lingua portugueza, 2nd ed., 2 vols., Lisboa: Typographia Lacerdina, p. 2, 103
  13. ^ 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. 3, 930
  14. ^ a b c Dicionário Priberam da Língua Portuguesa, Lisboa: Priberam Informática, https://dicionario.priberam.org, p. s.v. grumo
  15. ^ 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. grumo
  16. ^ 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. grumo
  17. ^ a b Porto Editora (2013), Grande Dicionário da Língua Portuguesa, Porto: Porto Editora, p. 4799
  18. ^ Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. grumo
  19. ^ Schlee, Aldyr Garcia (2019), Dicionário da Cultura Pampeana Sul-Rio-Grandense, 2 vols., Pelotas: Fructos do Paiz, p. s.v. grumo

Related etymologies

Cite this entry

“Grumo.” Etymologically, 15 Nov. 2026, etymologically.com/pt/grumo. Accessed 16 Nov. 2026.

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