出典:Wiktionary
出典:『Wiktionary』 (2026/02/12 18:27 UTC 版)
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| Cardinal: ūndecim Ordinal: ūndecimus Adverbial: ūndeciēs, ūndeciēns Proportional: ūndecuplus, ūndecemplus, ūndecimplus Multiplier: ūndecemplex, ūndecuplex, ūndecimplex Distributive: ūndēnus Fractional: ūndecimus |
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From earlier *oinodecem, from Proto-Indo-European *óynom déḱm̥t, corresponding to ūnus (“one”) + decem (“ten”).
ūndecim (indeclinable)
Some forms reflect *ŭndecim, evidenced by the shift *ŭ > o.