Etymologically

Etymology and origin of the Old French word iaue

Confidence
Established
Formation
Inherited
First attested
c. 1090 Vie de saint Alexis More words from the 11th century
Inherited from
Latin aqua
Ultimate origin
Proto-Italic *akʷā
Etymology tree
inherited borrowed derived
Latin aqua
Aromanian apã
Italian acqua
Old French iaue
French eau
Portuguese água
Romanian apă
Spanish agua
English aqua
From the same root
Latin aquālis ← aqua
Latin aquārius ← aqua
Latin aqueus ← aqua
Latin aquilus ← aqua
Latin aquor ← aqua
Latin aquōsus ← aqua

Pronunciation

  • Reconstructed: /ˈja.wə/[1]

Forms

iaue f (oblique plural iaues)[1]

Early and regional spellings: egua in the Vie de saint Alexis, ewe from the Roland to the 13th century, eve in the 12th and 13th centuries, aive, eawe about 1290 and iaue.[2] Eastern and north-eastern awe, without the rounding of the vowel.[4]

Etymology

It is inherited from Latin aqua (“water”).[1][2][5][6] The Latin word continues Proto-Italic *akwā-, with cognates only in Germanic, Gothic 𐌰𐍈𐌰 (aƕa) and Old High German aha from Proto-Germanic *aχwō, and de Vaan notes that this Italic and Germanic word may have been borrowed from a non-Indo-European language.[7] Its Romance cognates include Italian acqua, Spanish agua and Romanian apă.[8]

In the Latin word the group /kw/ weakened to /w/ and the first vowel moved towards /ɛ/, which gave egua in the Vie de saint Alexis and ewe in the Roland.[9] Pope traces the regional outcomes: the west had the form of the Roland by the 11th century, the centre developed a glide and wrote eaue, and the north-east kept an unrounded awe.[3][4] In the west the /w/ later became /v/, giving eve and aive, while elsewhere it became a vowel, which led through the central form to French eau.[9]

Bloch and Wartburg take aigue, the head word of Tobler–Lommatzsch and the DÉCT, for a form borrowed from the South,[6] while the DHLF calls it both an old French form and a southern one.[10]

Earliest recorded meaning

The first record is the Vie de saint Alexis, which the DEAF bibliography dates to about 1090 and the TLFi to about 1050.[11][12] There the word, spelled egua, already means water poured out: L'egua li getent, si moilent sun liçon “they throw the water over him and wet his bed”.[12][13]

Semantic evolution

From the start the word named both the liquid and a stretch of it: the Roland has les ewes curant “the running waters”, and in Chrétien de Troyes it is a river to be crossed, deep water round a walled bailey, and sea water.[12][14] A text of 1185 uses it for a fluid of the body: l'eaue du cuer li est as yex montee “the water of the heart has risen to the eyes”.[12]

The spelling eaue lasted into the 16th century,[6] when the word was still said with two vowels; by the 17th century it was a single /o/.[3] The modern word is French eau, and the western eve survives in Poitou.[6]

Timeline

  • c. 1090 – egua in the Vie de saint Alexis (about 1050 by the TLFi's dating).[11][13][12]
  • c. 1100 – ewe in the Chanson de Roland, whose Oxford manuscript is Anglo-Norman of the second quarter of the 12th century.[15][16]
  • 1104–1106 – ewe in the earliest Anglo-Norman text the AND cites for the word.[17]
  • c. 1170 – eve in Chrétien de Troyes's Erec et Enide.[14][18]
  • 1175–1200 – iaue in Garin le Loherain.[19][20]
  • 1185 – eaue for a fluid of the body.[12]
  • 1490 – the modern spelling eau.[12]

Meanings

Noun

  1. water, the liquid, also as one of the elements.[17][14]
  2. a body of water: a river, stream or the sea.[14][17]
  3. a flood.[17]
  4. a fluid of the body.[12]

Anglo-Norman

The AND heads the word ewe, first cites it from 1104–1106, and lists spellings from aeve and awe to yaue.[17] The AND records set phrases such as aler a l'ewe “to undergo the ordeal by water”, ewe beneite “holy water”, ewe de vie “brandy” and bailiff d'ewes, a water-bailiff or harbour-master.[17] Pope compares the English word ewer with the western form.[3]

Word family

  • ewage
  • ewer
  • aiguete

Descendants

  • Angevin iau[1]
  • Bourbonnais-Berrichon iau[1]
  • Bourguignon aoue[1]
  • Champenois iau[1]
  • Franc-Comtois âve[1]
  • Gallo iau[1]
  • Lorrain auve[1]
  • Middle French eau (→ French eau)[1]
  • Norman iâo[1]
  • Picard iau[1]
  • Poitevin-Saintongeais aeve[1]
  • Walloon aiwe[1]

Usage notes

The dictionaries head the word differently: Tobler–Lommatzsch and the DÉCT under aigue,[21][14] the AND under ewe,[17] and the DMF under eau.[22]

References

  1. ^ a b c d e f g h i j k l m n o Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 25:63
  3. ^ a b c d Pope, Mildred K. (1934), From Latin to Modern French with Especial Consideration of Anglo-Norman: Phonology and Morphology, Manchester: Manchester University Press (revised reprint 1952), p. § 330
  4. ^ a b c Pope, Mildred K. (1934), From Latin to Modern French with Especial Consideration of Anglo-Norman: Phonology and Morphology, Manchester: Manchester University Press (revised reprint 1952), p. § 482
  5. ^ Gamillscheg, Ernst (1966–1969), Etymologisches Wörterbuch der französischen Sprache, 2nd, fully revised ed., Heidelberg: Winter, p. 361
  6. ^ a b c d Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France, p. 247
  7. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill, p. s.v. aqua
  8. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 570
  9. ^ a b Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. eau
  10. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. aigue
  11. ^ a b Möhren, Frankwalt, Dictionnaire étymologique de l'ancien français (DEAF): Complément bibliographique, electronic version (DEAFBiblEl), Heidelberger Akademie der Wissenschaften, alma.hadw-bw.de/deafbibl (texts by siglum, with their dates), p. AlexisP
  12. ^ a b c d e f g h Trésor de la langue française informatisé (2004), ATILF – CNRS & Université de Lorraine, atilf.fr/tlfi; electronic version of Imbs, Paul; Quemada, Bernard, eds. (1971–1994), Trésor de la langue française, Paris: CNRS / Gallimard
  13. ^ a b UD Old French PROFITEROLE and UD Middle French PROFITEROLE treebanks, Universal Dependencies (from the SRCMF and the Base de français médiéval; texts by DEAF siglum), p. AlexisZ
  14. ^ a b c d e Dictionnaire électronique de Chrétien de Troyes (DÉCT), LFA / Université d'Ottawa – ATILF, CNRS / Université de Lorraine (2014), p. s.v. aigue
  15. ^ Möhren, Frankwalt, Dictionnaire étymologique de l'ancien français (DEAF): Complément bibliographique, electronic version (DEAFBiblEl), Heidelberger Akademie der Wissenschaften, alma.hadw-bw.de/deafbibl (texts by siglum, with their dates), p. RolS
  16. ^ Stein, Achim; Kunstmann, Pierre; Gleßgen, Martin-D., eds., Nouveau Corpus d'Amsterdam, version 4 (lemmatised corpus of Old French texts, after A. Dees), Universität Stuttgart, github.com/michaniets/NCA (texts by DEAF siglum), p. RolS
  17. ^ a b c d e f g Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–), p. s.v. ewe
  18. ^ Möhren, Frankwalt, Dictionnaire étymologique de l'ancien français (DEAF): Complément bibliographique, electronic version (DEAFBiblEl), Heidelberger Akademie der Wissenschaften, alma.hadw-bw.de/deafbibl (texts by siglum, with their dates), p. ErecF
  19. ^ Camps, Jean-Baptiste, et al., Geste: a lemmatised corpus of Old French chansons de geste, github (texts by DEAF siglum), p. GarLorrI
  20. ^ Möhren, Frankwalt, Dictionnaire étymologique de l'ancien français (DEAF): Complément bibliographique, electronic version (DEAFBiblEl), Heidelberger Akademie der Wissenschaften, alma.hadw-bw.de/deafbibl (texts by siglum, with their dates), p. GarLorrI
  21. ^ Tobler, Adolf; Lommatzsch, Erhard (1925–2002), Altfranzösisches Wörterbuch, 11 vols., Berlin / Wiesbaden / Stuttgart: Weidmann / Steiner, p. 1:236
  22. ^ Dictionnaire du Moyen Français, version 2015 (DMF 2015), ATILF – CNRS & Université de Lorraine, atilf.fr/dmf, p. s.v. eau
Cite this entry

“Iaue.” Etymologically, 9 Nov. 2026, etymologically.com/fro/iaue. Accessed 9 Nov. 2026.

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