Etymologically

demi-heure

Etymology and origin of the French word demi-heure

Confidence
Established
Formation
Compound
First attested
c. 1120 Philippe de Thaon, Bestiaire More words from the 12th century
Ultimate origins
French demi-Proto-Indo-European *yóh₁r̥
Etymology tree
inherited borrowed derived
Ancient Greek ὥρα (hṓra)
Latin hōra
Aromanian oarã
French heure
French demi-heure
Italian ora
Romanian oară
Spanish hora
Dutch uur
Hungarian óra
Romanian oră
The word's journey
From the same root
Ancient Greek ὡρόσκοπος (horoskopos) ← ὥρα
English horoscope ← ὥρα
Latin hōrārium ← hōra
Latin horārius ← hōra
Latin sēmihōra ← hōra
Romanian uneori ← hōra
Italian finora ← ora
Italian ormai ← ora
Romanian aorea ← oară
Romanian deoarece ← oară

Pronunciation

  • /də.mi.œʁ/[1]
  • /də.mi.jœʁ/[1]

Forms

demi-heure f (plural demi-heures)[1] Old French demie hure, in the plural demies hures.[2][3]

Etymology

It is a compound from French demi- + heure.[3][2][4][1] In 1647 Vaugelas ruled that the compound should be written ⟨demi-heure⟩ and not ⟨demie heure⟩, while ⟨une heure et demie⟩ keeps the feminine.[3] demi was nevertheless still treated as an adjective that agreed with its noun throughout the 17th century.[3]

Earliest recorded meaning

It first appears about 1120 in Philippe de Thaon's Bestiaire: Duze demies hures ço ne sunt que sis hures “twelve half hours make only six hours”.[3][2]

Semantic evolution

The word has kept its meaning, half of an hour, thirty minutes.[3][5] The modern hyphenated form is recorded from 1610[2][5] and is found in Guez de Balzac before 1654.[4][6] Until the 19th century it could be used without an article (en demi-heure), a construction the TLFi now marks as dated.[3]

Timeline

  • c. 1120 – Demies hures appears in Philippe de Thaon's Bestiaire.[3][2]
  • 1610 – The form demi-heure is recorded.[2][5]
  • 1647 – Vaugelas prescribes the spelling demi-heure.[3][6]
  • Before 1654 – Guez de Balzac uses the word.[4][6]

Meanings

Noun

  1. Half an hour, thirty minutes: nous partons dans une demi-heure, la cloche sonne toutes les demi-heures.[3][5][1]
  2. (dated) Used without an article: il ne lui fallut pas plus de demi-heure.[3]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  3. ^ a b c d e f g h i j k 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
  4. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  5. ^ a b c d Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  6. ^ a b c Quemada, Bernard, ed. (1959–2006), Datations et documents lexicographiques (Base historique du vocabulaire français, BHVF), Paris: Klincksieck / CNRS / Champion; ATILF
Cite this entry

“Demi-heure.” Etymologically, 15 Nov. 2026, etymologically.com/fr/demi-heure. Accessed 15 Nov. 2026.

Last edited on . ·