Etymologically

Etymology and origin of the Portuguese word osso

Confidence
Established
Formation
Inherited
First attested
1200s Cantigas de Santa Maria More words from the 13th century
Inherited from
Latin ossum
Ultimate origin
Proto-Indo-European *h₃ésth₁

Pronunciation

  • Brazil: /ˈo.su/[1]
  • Portugal: /ˈo.su/[1]

Forms

osso m (plural ossos, metaphonic)[1] Houaiss records the 15th-century spellings osoos, osos and ousso.[2] The plural ossos is metaphonic, with an open stressed vowel.[1]

Etymology

It is inherited from Latin ossum (“bone”), the popular variant of os (“bone”), with the same form in the oldest texts.[2][1][3] De Vaan finds ossum from Accius on, and Corominas notes that it is frequent in Latin from the 4th century and that the Romance languages kept only this form.[4][5] The same Latin word is Galician óso, Spanish hueso, Catalan os, French os, Italian osso, Romanian os and Sardinian ossu.[6][1]

For the classical noun de Vaan reconstructs Proto-Italic *ost and Proto-Indo-European *h₃o/est- (“bone”), with cognates such as Ancient Greek ὀστέον (ostéon) and Hittite haštāi.[4] Wiktionary gives the root as Proto-Indo-European *h₃ésth₁ (“bone”).[1]

Earliest recorded meaning

Lorenzo's chronology antedates Machado's record of 1517 with the Cantigas de Santa Maria: log'os ossos foron ben soldados “at once the bones were well knit”, and non á osso são / na cabeça “there is no sound bone in his head”.[7] The Crónica Troiana has the wound going so deep que lle pareçia o osso “that the bone showed”.[7]

Semantic evolution

In the Cantigas de Santa Maria the plural already means a person's remains, laid in a tomb.[7] Barbosa (1611) lists ossinho, juntas dos ossos “joints” and ossada.[8] Bluteau (1712–1728) describes the skeleton as a building, with the bones of the feet as foundations and the skull as a vault.[9]

Figurative senses are a difficulty or obstacle and, by metaphor, a comfortable job.[2][10][1] In Brazilian slang it also means a mistress, and as an adjective “difficult”, “annoying”, “fearless” or “capable”.[2][10][1] The anatomical term osso sacro “sacrum” renders the Latin name, itself a calque of the Greek “sacred bone”: Houaiss explains it by the ancient custom of offering that part of the victim to the gods.[2]

Timeline

  • 13th century – first record, in the Cantigas de Santa Maria.[7][2]
  • 15th century – the spellings osoos, osos and ousso.[2]
  • 1513 – the Livro dos Mártires has the word.[11]
  • 1569 – Cardoso translates it with Latin os.[12]
  • 1611 – Barbosa lists ossinho and ossada.[8]
  • 1712–1728 – Bluteau describes the bones of the body.[9]

Meanings

Noun

  1. (anatomy) A bone, one of the hard pieces that make up the skeleton of vertebrates.[2][10][13][1]
  2. Bone as a material.[1]
  3. (figurative) A difficulty, an obstacle: Aquela prova foi um osso.[2][10][1]
  4. (figurative) A comfortable, well-paid job.[2]
  5. (Brazil, slang) A mistress or lover.[2][10]
  6. (in the plural) Mortal remains.[2][14]

Adjective

  1. (Brazil, informal) Difficult; annoying.[1]
  2. (Brazil, informal) Fearless; capable.[2]

Word family

  • desossar
  • ossada
  • ossinho
  • ossudo
  • ossaria
  • ossamenta
  • ossatura
  • ósseo
  • ossário
  • ossuário
  • ossificar
  • Latin os
  • Galician óso
  • Spanish hueso

Usage notes

Common set phrases are osso duro de roer “a tough nut to crack”, ossos do ofício “the hazards of the trade” and em carne e osso “in the flesh”.[1]

References

  1. ^ a b c d e f g h i j k l m n Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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. osso
  3. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. osso
  4. ^ 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
  5. ^ Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 3, 420
  6. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. ossum
  7. ^ a b c d 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. osso
  8. ^ a b Barbosa, Agostinho (1611), Dictionarium lusitanicolatinum, Braga: Fructuoso Lourenço de Basto (CLP transcription, Universidade de Aveiro), p. s.v. osso
  9. ^ 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. osso
  10. ^ a b c d e Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. osso
  11. ^ Centro de Linguística da Universidade de Lisboa, CTA – Corpus de Textos Antigos, https://teitok.clul.ul.pt/cta, p. s.v. osso
  12. ^ Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. osso
  13. ^ 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. osso
  14. ^ Wikcionário (Portuguese Wiktionary), pt.wiktionary.org, p. s.v. osso

Related etymologies

Cite this entry

“Osso.” Etymologically, 15 Nov. 2026, etymologically.com/pt/osso. Accessed 16 Nov. 2026.

Last edited on . ·