Etymologically

Etymology and origin of the Romanian word sau

Confidence
Disputed
Formation
Compound
First attested
1500–1520 the Hurmuzaki Psalter More words from the 15th century
Ultimate origins
Proto-Italic *seiRomanian au
Etymology tree
inherited borrowed derived
Latin sī
French si
Romanian să
Romanian sau
Spanish si
From the same root
Italian quasi ← sī
Latin etiamsī ← sī
Latin etsī ← sī
Latin nisi ← sī
Latin quasi ← sī
Latin sīc ← sī
Latin sīcubi ← sī
Latin sīn ← sī
Latin sīquidem ← sī
Latin sīve ← sī
French sinon ← si

Pronunciation

Etymology

It is formed from Romanian să + au according to MDA2, the DLR, DEX and Wiktionary, ⟨au⟩ being the old conjunction “or”.[2][3][4][1]

Others derive it from Latin.[5][6] Cihac gave Latin seu (“or”) and sīve.[5] Ciorănescu takes ⟨seu⟩ and calls the sound change unclear: the word might rather go back to ⟨sīve⟩, whose outcome ⟨*seaue⟩ would have reduced /ea/ to /a/.[6] Pușcariu, Tiktin and Candrea explain it as a cross of ⟨seu⟩ with Latin aut, Romanian ⟨au⟩.[6][7]

Earliest recorded meaning

Sau is in the Hurmuzaki Psalter of the early 16th century,[8] and Tiktin cites the same psalm in the Psaltirea Scheiană.[7] MDA2's first record is the Codicele Voronețean, which has „face-vremu ceasta sau ceaia” “we shall do this or that”.[2][3] The sense is “or”.[3]

Semantic evolution

Old texts used sau beside au in the same sense, as in Coresi's „au împărăția ceriului … sau osânda” “either the kingdom of heaven or damnation”.[3] Besides the choice between alternatives it came to mark an equivalent name (“that is”) and, in questions, a hesitant “or perhaps?”.[4] In folk speech ori is far more usual.[7]

Timeline

  • early 16th century – in the Hurmuzaki Psalter.[8]
  • c. 1563–1583 – in the Codicele Voronețean, MDA2's first record.[2]
  • 1570 – in Coresi's Psalter.[9]

Meanings

Conjunction

  1. or: joins things that exclude each other: Râde sau plânge?; alternatives: Vrei apă sau suc?[4][1]
  2. (repeated) sau…, sau… “either… or…”.[4][7]
  3. Or, that is (giving another name): Sfatul, sau adunarea țării.[4]
  4. And, as well as (in lists).[4]
  5. (in questions) Or perhaps?: De ce nu suni? Sau n-ai timp?[4]

Usage notes

An old and regional variant is seau.[2]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2010), Micul dicționar academic, 2nd ed., 4 vols., București: Univers Enciclopedic Gold, p. 2, 762
  3. ^ a b c d Academia Română (1965–2010), Dicționarul limbii române (DLR), serie nouă, tom I–XIX, București: Editura Academiei Române, p. s.v. sau
  4. ^ a b c d e f g DEX (2009), Dicționarul explicativ al limbii române [Explanatory dictionary of the Romanian language], Bucharest: Editura Univers Enciclopedic, p. 977
  5. ^ a b Cihac, A. de (1870), Dictionnaire d'étymologie daco-romane I: Éléments latins comparés avec les autres langues romanes, Frankfurt am Main, p. 243
  6. ^ a b c Ciorănescu, Alexandru (1958–1966), Diccionario etimológico rumano, La Laguna: Universidad de La Laguna (Romanian ed.: Dicționarul etimologic al limbii române, București: Saeculum, 2001), p. s.v. sau
  7. ^ a b c d Tiktin, Hariton (2000–2005), Rumänisch-deutsches Wörterbuch, 3rd ed., revised by Paul Miron and Elsa Lüder, 3 vols., Cluj-Napoca: Clusium, p. s.v. sau
  8. ^ a b Gînsac, Ana-Maria; Ungureanu, Mădălina; Moruz, Alexandru et al., roPsalt: Re-evaluating the Sixteenth Century Romanian Psalters (aligned corpus), Iași: Universitatea „Alexandru Ioan Cuza”, https://scriptadacoromanica.ro, p. Ps 8:5
  9. ^ Gînsac, Ana-Maria; Ungureanu, Mădălina; Moruz, Alexandru et al., roPsalt: Re-evaluating the Sixteenth Century Romanian Psalters (aligned corpus), Iași: Universitatea „Alexandru Ioan Cuza”, https://scriptadacoromanica.ro, p. Ps 13:3
Cite this entry

“Sau.” Etymologically, 11 Nov. 2026, etymologically.com/ro/sau. Accessed 11 Nov. 2026.

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