Paris is the capital and largest city of France, with an estimated city population of 2.04 million in an area of 105.4 km2 (40.7 sq mi), and a metropolitan population of 13.2 million as of January 2026. Located on the river Seine in the centre of the Île-de-France region, it is the largest metropolitan area and fourth-most populous city in the European Union (EU). Nicknamed the "City of Light", partly because of its role in the Age of Enlightenment, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, fashion, and gastronomy since the 17th century.
The name Paris is derived from its early inhabitants, the Parisii, a Gallic tribe from the Iron Age and the Roman period. The meaning of the Gaulish ethnonym remains debated. According to Xavier Delamarre, it may derive from the Celtic root pario- ('cauldron'). Alfred Holder interpreted the name as 'the makers' or 'the commanders', by comparing it to the Welsh peryff ('lord, commander'), both possibly descending from a Proto-Celtic form reconstructed as *kwar-is-io-. Alternatively, Pierre-Yves Lambert proposed to translate Parisii as the 'spear people', by connecting the first element to the Old Irish carr ('spear'), derived from an earlier *kwar-sā.
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