ūndecim
The Latin word for eleven is ūndecim.
ūndecim is used as a cardinal number to denote the quantity of eleven.
Meaning: the cardinal number occurring after ten and before twelve (num)
Which one should you use?
The cardinal number ūndecim is used for the quantity eleven, while undecimus is the ordinal form used to mean eleventh.
How does it change in a sentence?
As a cardinal number, ūndecim is indeclinable, which means it does not change its form to match gender, number or case in a sentence.
Did you know?
- The Latin phrase ūndecim influenced the word 'undecimal', which refers to a base-11 numbering system, though this is rarely used compared to decimal or binary.
- In many Romance languages derived from Latin, such as Italian, the number eleven is still built from the same 'one' and 'ten' roots seen in ūndecim.
- The root 'decem' found in ūndecim is the ancestor of the English word 'decimal', which relates to groups of ten.
Examples in context
- Undecim, duodecim, tredecimEleven, twelve, thirteen
- ūndecim milites in campo sunt.There are eleven soldiers in the field.
- numerus est ūndecim.The number is eleven.
Example conversation
Lucius and Julia are counting coins.
- LuciusQuot nummōs habes, Iulia?How many coins do you have, Julia?
- JuliaHabeo ūndecim nummōs.I have eleven coins.
- LuciusEgo habeo decem.I have ten.
- JuliaItaque ego plus habeo!So I have more!
Sources
- Wiktionary, “eleven” translations, CC BY-SA 4.0, dump of 2026-09-26.
