means Casual trousers made of sturdy cotton denim, typically blue and reinforced for hard wear.

from The word comes from "Genoa," the Italian port city, by way of the French name for it, "Gênes." Genoese sailors wore tough cotton trousers, and the fabric became known as "jean" after the place. Denim itself is a separate cloth — "serge de Nîmes," from the French town of Nîmes — so the modern jean marries two European cities: cut from the cloth of Nîmes, named for the harbor of Genoa.