Etymologically

duodecim

Etymology and origin of the Latin word duodecim

Confidence
Established
Formation
Compound
First attested
Plautus
Ultimate origin
Latin (duo,decem)

Pronunciation

  • IPA (Classical): [duˈɔ.dɛ.kĩː][1]
  • IPA (Ecclesiastical): [duˈɔː.de.t͡ʃim][1]

Forms

duodecim (indeclinable)[1]

Etymology

It is a compound of duo “two” and decem “ten”.[2][1][3]

Earliest recorded meaning

The OLD's and Lewis and Short's earliest citation is from Plautus' Epidicus.[3] Köbler dates Plautus c. 250–184 BC.[4]

Semantic evolution

It meant twelve, as in Cicero and Caesar, and duodecim tabulae “the Twelve Tables” were the laws of early Rome, often written XII.[2][3][5]

British Medieval Latin used it of the twelve tribes and the twelve apostles.[6] It survives in Italian dodici and French douze, and Old French dozaine gave English dozen about 1300.[1][7]

Timeline

  • c. 250–184 BC – Plautus uses it.[3][4]
  • 81–43 BC – Cicero speaks of the Twelve Tables.[5][4]
  • c. 50 BC – Caesar uses it.[3][4]
  • c. 1300 – English dozen is recorded.[7]

Meanings

Numeral

  1. Twelve, duodecim tabulae, the Twelve Tables.[2]

Word family

  • duodecennis
  • duodecennium
  • duodeciaere
  • duodeciēns
  • duodecimvir
  • duodecimus
  • duodēnī

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  7. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Duodecim.” Etymologically, 16 Oct. 2026, etymologically.com/la/duodecim. Accessed 16 Oct. 2026.

Last edited on . ·