What does duodecim mean in Latin?

duodecim, a numeral, means “twelve; 12”.

How do you pronounce duodecim?

In classical Latin, [duˈɔ.dɛ.kĩː]; in ecclesiastical (church) Latin, [duˈɔː.de.t͡ʃim].

Proto-Indo-European *dwóh₁ → Proto-Italic *duō → Latin duodecim.

English words that go back to Latin duodecim include dozen, duodecillion, douzeper, duodecimary, duodecimfid and duodecennial.

numeral

duodecim (indeclinable)

Classical[duˈɔ.dɛ.kĩː]Ecclesiastical[duˈɔː.de.t͡ʃim]

Mille Verba core vocabulary

indeclinabletwelve; 12
Atque omnium primum ad cursus lunae in duodecim menses discribit annumFirst of all he divided the year into twelve months, corresponding to the moon's revolutions27 BCE – 25 BCE, Titus Livius, Ab urbe condita 1.19
Thomas autem unus ex duodecim qui dicitur Didymus non erat cum eis quando venit IesusBut Thomas, one of the twelve, called Didymus, was not with them when Jesus came.c. 347 CE – 420 CE, Hieronymus, Vulgate Ioannes.20.24

numerus XII

duodecim — in Evangelium secundum Marcum, ch. 5

dŭŏdĕcim,

I. card. num. [duo-decem], twelve, Plaut. Ep. 5, 2, 10; Cic. Rep. 2, 17; Caes. B. G. 1, 5, 2 et saep.—So, duodecim (and more freq. XII.) Tabulae, the laws of the Twelve Tables, Cic. Off. 1, 12; Quint. 5, 14, 18; Varr. L. L. 5, § 22 Müll. et saep.; called also absol.: duodecim (or XII.), Cic. Leg. 2, 23 (repeatedly); id. Off. 3, 16 al. (v. Wordsworth, Fragm. and Spec. pp. 253-265).

Proto-Indo-European *déḱm̥ Proto-Italic *dekəm Latin decem Latin duodecim From duo (“two”) + decem (“ten”).

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