demi-

prefix

partial

Opposite

Meanings

prefix
  1. partial

    Synonyms: semi- · Antonyms: holo-

  2. half

    Synonyms: half-, hemi-, semi- · Antonyms: holo-

  3. governmentOnly the upper or front half of
    1 more example

    The Barony of Pennicuik, the property of Sir George Clerk, Bart., is held by the following singular tenure: The proprietor is bound to sit upon a large rock, called the Buckstone, and wind three blasts of a horn when the king comes to hunt on the Borough Moor near Edinburgh. On account of this singular custom the family have adopted as their crest a demi-forester proper, winding a horn with the motto, Free for a blast.

    1885, E. J. Guthrie, Old Scottish Customs, page 84

Synonyms & antonyms

prefixpartial

Similar
Opposite

prefixhalf

Opposite

Origin

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*trísinflu.
  3. Proto-Indo-European*d(w)is-
  4. Proto-Italic*dis-
  5. Latindis-
  6. Proto-Indo-European*me
  7. Proto-Indo-European*dʰeh₁-?
  8. Proto-Indo-European*médʰi
  9. Proto-Indo-European*médʰyos
  10. Proto-Italic*meðios
  11. Latinmedius
  12. Latindīmidius
  13. Vulgar Latin*dimedius
  14. Anglo-Normandemi
  15. Middle Englishdemi
  16. Englishdemi-

From Middle English demi (“half, half-sized, partial”), from Anglo-Norman demi (“half”), from Vulgar Latin *dimedius, from Latin dīmidius, from dis- (“apart; in two”) + medius (“middle”).

Full word history & related roots →

Translations

Chinese 半
  • 半 (bàn)half — see also half-, semi-, hemi-
Finnish puoli-
  • puoli-half — see also half-, semi-, hemi-
French demi-
  • demi-half — see also half-, semi-, hemi-
Greek ημι-
  • ημι- (imi-)half — see also half-, semi-, hemi-
Italian semi-, emi-
  • semi-half — see also half-, semi-, hemi-
  • emi-half — see also half-, semi-, hemi-
Japanese 半
  • 半 (han)half — see also half-, semi-, hemi-
Korean 반
  • 반 (ban)half — see also half-, semi-, hemi-
Latin semi-
  • semi-half — see also half-, semi-, hemi-
Polish pół-
  • pół-half — see also half-, semi-, hemi-
Romanian semi-, demi-
  • semi-half — see also half-, semi-, hemi-
  • demi-half — see also half-, semi-, hemi-
  • emi-half — see also half-, semi-, hemi-
Russian пол-, полу-
  • пол- (pol-)half — see also half-, semi-, hemi-
  • полу- (polu-)half — see also half-, semi-, hemi-
Spanish semi-
  • semi-half — see also half-, semi-, hemi-
Tagalog mala-
  • mala-half — see also half-, semi-, hemi-
Vietnamese bán
  • bánhalf — see also half-, semi-, hemi-
Cite this entry
APA

demi-. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/demi-

MLA

“demi-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/demi-. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “demi-,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/demi-.

Source: demi- on Wiktionary, CC BY-SA 4.0.