Etymograph

English

demi

Demi comes from Anglo-Norman demi, from Latin dimidius ‘half’, and ultimately from Proto-Indo-European *médʰi ‘with, among’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*médʰi‘with, among’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*médʰyos‘middle’reconstructed
  3. Proto-Italicc. 1500–700 BCE*meðios‘middle’reconstructed
  4. Latinc. 75 BCE–200 CEmedius‘middle’
  5. Latin, derivedc. 75 BCE–200 CEdimidius‘half’
  6. Anglo-Normanc. 1066–1400demi
  7. Middle Englishc. 1150–1500same form
  8. Englishearliest quotation 1928same form

attested reconstructed ? uncertain or disputed

Earlier history uncertain.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*médʰi‘with, among’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*médʰyos‘middle’reconstructed
  3. Proto-Italicc. 1500–700 BCE*meðios‘middle’reconstructed
  4. Latinc. 75 BCE–200 CEmedius‘middle’
  5. Latin, derivedc. 75 BCE–200 CEdimidius‘half’
  6. Anglo-Normanc. 1066–1400demi
  7. Middle Englishc. 1150–1500same form
  8. Englishearliest quotation 1928same form

Earliest quotation: 1928, Jean Rhys, Quartet: “The place was empty save for a big man…”

Linked words

through Proto-Indo-European *dʰeh₁- ‘to do’

do, fact, hot, fair, deal, fan, benefit, fashion, feature, defense, custom, ethnic, sufficient, theme, defence, treasury, treasure, ethical, thesis, aesthetic, feast, synthetic, theology, doom, tick, defendant, dis, atheist, ethic, auditorium, auditor, atheism, deed, ethos, forfeit, feral, fanatic, prefect, thematic, certify, 125 more

through Proto-Indo-European *médʰi ‘with, among’

meson, 5 more

through Proto-Indo-European *médʰyos ‘middle’

media, mid, midst, maidan, meso, 26 more

through Proto-Italic *meðios ‘middle’

medallion, 17 more

through Latin medius ‘middle’

mean, medium, medal, median, mediation, mediator, medial, mediate, mezzanine, milieu, moiety, medulla, medio, moyen, intermezzo, 18 more

Today it means

noun A fifty pence piece.

Language periods are conventional ranges, not dates for this word.

Etymograph / Proto-Indo-European *médʰi / demi