Denim was traditionally colored blue with indigo dye to make blue jeans, although "jean" formerly denoted a different, lighter, cotton fabric. The contemporary use of the word "jeans" comes from the French word for Genoa, Italy (Gênes). In Nîmes, weavers tried to reproduce jean fabric but instead developed a similar twill fabric that became known as denim, from de Nîmes, meaning "from Nîmes".

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