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ProbableNamed from the place

troy ounce

noun · first attested Middle English

Gold is priced in an ounce named for a French market town, not ancient Troy.

The unit of about 31.1 grams used for weighing gold, silver and other precious metals.

Troyes·France

48.2989°N 4.0781°E · Q5489

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Relationship
Named from the place
Confidence
ProbableThe conventional story is likely, with caveats.
Attested
Middle English
Part of speech
noun

Explanations here are written for this atlas. Dictionary text is not copied; the sources are linked so the claim can be checked.

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    Troyes

  2. In English

    troy ounce

The entry

The weight is generally traced to the medieval trade fairs at Troyes in Champagne, where merchants from across Europe needed one agreed standard. That link is the conventional account rather than a documented one, and rival derivations pointing at English towns have been proposed and largely dismissed.

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France

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