Etymologically

dieu

Etymology and origin of the French word dieu

Confidence
Established
Formation
Inherited
First attested
842, Strasbourg Oaths
Inherited from
Latin deus via Old French
Ultimate origin
Proto-Indo-European (*deywós)
Etymology tree
inherited borrowed derived
Latin deus
French dieu

Pronunciation

  • IPA: /djø/[1]
  • IPA (Quebec): /dzjø/[1]
  • IPA (Louisiana): /d͡ʒø/[1]

Forms

dieu m (plural dieux, feminine déesse)[1] Deo and Deus (842), then Deu and Dieu (11th–12th century); Old French declined nominative deus, dex, diex, object deu, dieu.[2][3]

Etymology

It is inherited from Old French Deu, inherited from Latin deus (“god”), from Old Latin “deivos”, from Proto-Italic *deiwos, from Proto-Indo-European *deywós.[4][2][1][5] Rey traces it to a root “*dei-” “to shine”, which named the bright sky as a deity and the heavenly beings as opposed to earthly humans; it is the oldest Indo-European name of divinity, also present in Ancient Greek Ζεύς (Zeús) and in Latin diēs (“day”) (see jour).[2][6] “Deus” supplanted dīvus, the title of deified emperors.[6]

Cognate with Romanian zeu, Italian dio, Occitan dieu, Catalan déu, Spanish dios and Portuguese deus.[6][3]

Earliest recorded meaning

It is first found in the Strasbourg Oaths (842): Pro Deo amur “for the love of God”, and in quant Deus savir et podir me dunat “in so far as God gives me knowledge and power”.[4][2]

Semantic evolution

Found in the very first French text for the God of Christianity, the word has also named a god of polytheism since the 12th century.[2][7] It is used as an exclamation (Deus !, about 1100) and in countless oaths, many of them disguised to avoid blasphemy: tudieu (1537), corbleu and morbleu (1612), parbleu (about 1650) and sacrebleu (1808).[4][2][8] Dieu merci comes from the older par la merci Dieu “by the grace of God”.[2]

C'est son dieu, of a person or thing one idolizes, dates from 1606.[4] The sailors' à Dieu vat (1684), a wish for a safe voyage, became “come what may” in the 19th century.[2] adieu dates from the 12th century and demi-dieu from 1488.[8] In the French of francophone Muslims Dieu est grand renders Arabic allahu akbar.[2]

Timeline

  • 842 – Deo and Deus in the Strasbourg Oaths.[4]
  • c. 1100 – Deus ! as an exclamation, in the Chanson de Roland.[4]
  • 12th century – A god of polytheism, adieu.[2][8]
  • 1488 – Demi-dieu.[8]
  • 1537 – Tudieu.[8]
  • 1606 – C'est son dieu in Nicot.[4]
  • 1612 – Morbleu and corbleu.[8]
  • 1684 – À Dieu vat at sea.[2]
  • 1881 – Bondieuserie.[8]

Meanings

Noun

  1. Dieu: God, the supreme being of monotheism.[7][1]
  2. A god, a deity of polytheism: les dieux de l'Olympe.[1][2]
  3. A person or thing one idolizes: L'argent est son dieu.[4]
  4. In exclamations: mon Dieu !, grand Dieu !, Dieu merci, thank God.[2][6]
  5. (familiar) Le bon Dieu: God, il n'y a pas de bon Dieu, it's bound to happen.[9]

Word family

  • adieu
  • bondieusard
  • bondieuserie
  • demi-dieu
  • corbleu
  • morbleu
  • parbleu
  • palsambleu
  • sacrebleu
  • tudieu
  • divin
  • déesse
  • Latin deus

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  4. ^ 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
  5. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 3, 57a
  6. ^ a b c d Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  7. ^ a b Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  8. ^ a b c d e f g Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  9. ^ Quemada, Bernard, ed. (1959–2006), Datations et documents lexicographiques (Base historique du vocabulaire français, BHVF), Paris: Klincksieck / CNRS / Champion; ATILF

Related etymologies

Cite this entry

“Dieu.” Etymologically, 18 Oct. 2026, etymologically.com/fr/dieu. Accessed 18 Oct. 2026.

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