Etymologically

Etymology and origin of the Portuguese word meio-dia

Confidence
Established
Formation
Compound
First attested
1200s spelt meyo dya More words from the 13th century
Ultimate origin
Latin medius,diēs
Etymology tree
inherited borrowed derived
Latin medius
Italian mezzo
Portuguese meio
Portuguese meio-dia
Romanian miez
Spanish medio
Italian medio
Romanian mediu
From the same root
English intermediary ← medius
French médial ← medius
Italian mezzogiorno ← medius
Latin dīmidius ← medius
Latin intermedius ← medius
Latin mediālis ← medius
Latin mediānus ← medius
Latin medietās ← medius
Latin mediō ← medius
Latin mediocris ← medius
Latin mediterrāneus ← medius
Latin meditullium ← medius
Latin medium ← medius
Latin merīdiēs ← medius
Spanish mitad ← medius
Italian mezzanotte ← mezzo
Italian mezzodì ← mezzo
Portuguese meia-noite ← meio
Romanian primez ← miez
Spanish mediodía ← medio
Italian media ← medio

Pronunciation

  • Brazil: /ˌmej.uˈd͡ʒi.ɐ/, [ˌmeɪ̯.uˈd͡ʒi.ɐ][1]
  • Portugal: /ˌmɐj.uˈdi.ɐ/, [ˌmɐj.uˈði.ɐ][1]
  • Northern, Portugal: /ˌmej.uˈdi.ɐ/, [ˌmej.uˈði.ɐ][1]
  • Central, Portugal: /ˌmej.uˈdi.ɐ/, [ˌmej.uˈði.ɐ][1]

Forms

meio-dia m (plural meios-dias)[1] Old spellings are meyo dya and meyodya in the 13th century, meo dya and meodia in the 14th, and meodia in the 15th.[2][3] Cardoso writes meo dia in 1569 and Pereira Meyo dia in 1697.[4][5]

Etymology

It is formed from Portuguese meio + dia, “the middle (of the) day”, already as Old Galician-Portuguese meyo dya in the 13th century.[2][3][1][6] meio is from Latin medius (“middle”).[7] dia comes from *dia, a reshaping of diēs (“day”).[8][1]

Earliest recorded meaning

Houaiss's first record, of the 13th century, has the sense “the middle of the day”.[2] The Galician-Portuguese Crónica Troiana says that they kept at it ata ora de meo dia “until the hour of noon”, and the Crónica Geral has des meyodia ata a tarde “from noon until the evening”.[9][10]

Semantic evolution

Houaiss dates the sense “south” to the 14th century; the Crónica Geral already has the word for both noon and the south.[2][10] Aurélio explains the transfer: until the 15th century the lands and seas Europeans knew lay north of the Tropic of Cancer, so the sun at noon always stood to the south.[11] Nascentes remarks that the name suits only the northern hemisphere.[12] The word also names the southern countries or regions, and figuratively the prime of life.[2][13]

Timeline

  • 13th century – first records, spelt meyo dya and meyodya.[2][3]
  • 14th century – the sense “south”; spellings meo dya and meodia.[2][3]
  • 1569 – Cardoso glosses meo dia with Latin meridies.[4]
  • 1585 – meyo dya in a private letter.[14]
  • 1697 – Pereira heads it Meyo dia.[5]

Meanings

Noun

  1. noon, midday: the middle of the day, when the sun is highest; twelve o'clock.[2][1]
  2. The cardinal point south.[2][1]
  3. The southern part of a region, or the southern countries.[2][13]
  4. (figurative) The prime of life, the height of one's powers.[2][11]

Usage notes

The plural is meios-dias.[1] Fazer meio-dia meant waiting for the sun to cross the meridian, and so resting and eating from one's provisions.[13]

References

  1. ^ a b c d e f g h i j Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. meio-dia
  3. ^ a b c d Cunha, Antônio Geraldo da (2010), Dicionário etimológico da língua portuguesa, 4th ed., Rio de Janeiro: Lexikon, p. s.v. meio-dia
  4. ^ a b Cardoso, Jerónimo (1569–1570), Dictionarium ex lusitanico in latinum sermonem, Lisboa: João Álvares (CLP transcription, Universidade de Aveiro), p. s.v. meo dia
  5. ^ a b 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. meyo dia
  6. ^ Nascentes, Antenor (1966), Dicionário etimológico resumido, Rio de Janeiro: Instituto Nacional do Livro, p. s.v. meio-dia
  7. ^ Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. meio
  8. ^ Houaiss, Antônio; Villar, Mauro de Salles (2001), Dicionário Houaiss da língua portuguesa, Rio de Janeiro: Objetiva, p. s.v. dia
  9. ^ 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. meo dia
  10. ^ a b 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. meyodia
  11. ^ a b Ferreira, Aurélio Buarque de Holanda, Novo dicionário Aurélio da língua portuguesa, digital edition, p. s.v. meio-dia
  12. ^ Nascentes, Antenor (1952), Dicionário etimológico da língua portuguesa, vol. 2: Nomes próprios, Rio de Janeiro, p. 231
  13. ^ a b c 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. meio-dia
  14. ^ 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. meio-dia

Related etymologies

Cite this entry

“Meio-dia.” Etymologically, 15 Nov. 2026, etymologically.com/pt/meio-dia. Accessed 16 Nov. 2026.

Last edited on . ·