Translation
eighteen
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Examples
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At eighteen he left the city.
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There were eighteen ships in the harbour.
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We were on the journey for eighteen days.
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Eighteen soldiers stayed in the camp.
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Eighteen horsemen came to the king.
Duodeviginti is subtractive: duo de viginti, "two from twenty". Latin does not say "eight and ten" here in the ordinary way; it counts down from the next ten. The form decem et octo does occur, but duodeviginti is the standard one. The word is indeclinable, and the duo inside it never declines either: duodeviginti dierum, duodeviginti militibus.
The pattern runs all the way up: duodetriginta is 28, duodequadraginta 38, and so on to duodecentum, 98. The ordinal is duodevicesimus, "eighteenth". Oddly, Roman numerals do not follow the words here: 18 is written XVIII, not two taken from twenty.
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Latin · Free printables
duodeviginti: worksheet, infographic and listicle
Free printable study downloads for the Latin word "duodeviginti" (eighteen): a worksheet with the answer key built in, an infographic, and a sentence listicle. Open any one to view, print or save.
This word is taught in chapter 1, lesson 12: duodeviginti, propter, ergo and 11 more words.