Etymologically

adieu

Etymology and origin of the French word adieu

Confidence
Established
Formation
Compound
First attested
late 12th century, Mort de Garin (adeu)
Ultimate origin
Latin (deus)
Etymology tree
inherited borrowed derived
French à
French adieu
French au-delà

Pronunciation

  • IPA: /a.djø/[1]

Forms

adieu (interjection); adieu m (noun; plural adieux)[1] Old French adeu.[2][3]

Etymology

It is from French à + dieu: a shortening of the leave-taking formula “I commend you to God”, Old French a Dieu vos comant.[3][4][1][5] The noun dieu continues Latin deus (“god”).[6]

Compare Picard adé, Occitan adieu, Catalan adeu, Spanish adiós, Portuguese adeus and Italian addio.[5][1]

Earliest recorded meaning

In the Mort de Garin (late 12th century) the king takes leave with Adeu, sire cosin “goodbye, cousin”.[2]

Semantic evolution

From the start it was said on parting and, regionally, also on meeting.[7] The phrase dire adieu already treats it as a noun; the noun itself is found in 1458 (le gracieux adieu) and was fully established in the 16th century, with les adieux, faire ses adieux and visite d'adieu.[7][2][4] It also came to mark a loss or a giving up, as in La Fontaine's Adieu veau, vache, cochon, couvée.[4][8]

The modern contrast between adieu (for a long or final parting) and au revoir took shape at the start of the 19th century; before that one could say adieu, jusqu'au revoir.[7][4] In the south of France, from the Charentes to the Jura and below, it still serves for “hello” as well as “goodbye”.[7][4] English took the word in the late 14th century (adewe), first as a parting salutation said to the one staying behind.[9]

Timeline

  • Late 12th century – Adeu, Mort de Garin.[2]
  • 1458 – The noun: le gracieux adieu.[7]
  • 1588 – The noun for a leave-taking.[4]
  • Late 14th century – English borrows it as adewe.[9]
  • Early 19th century – Adieu and au revoir take distinct uses.[7]

Meanings

Interjection

  1. farewell, goodbye, said to someone one will not see for a long time or ever again.[4][8]
  2. (southern France, Switzerland) Hello; goodbye.[4][1]
  3. Said to mark that something is lost or given up: adieu veau, vache, cochon, couvée.[4][8]
  4. Dire adieu à: to take leave of; to renounce, give up for lost.[4]

Noun

  1. A leave-taking, parting: le moment des adieux, faire ses adieux, une visite d'adieu.[4][7]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d 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
  3. ^ a b Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  4. ^ a b c d e f g h i j k Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  5. ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  6. ^ Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  7. ^ a b c d e f g Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  8. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Adieu.” Etymologically, 18 Oct. 2026, etymologically.com/fr/adieu. Accessed 18 Oct. 2026.

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