German der Kamin, derived according to Duden from Latin caminus, a furnace (sicut in camino ardenti, Revelations I ), means fireplace and in the South, also chimney (the English word, via French cheminée, which contains the French word chemin = road/way, having apparently the same origin).The morphologically similar el camino in Spanish means road or way. I wonder if there is a connexion here, my theory being that a fireplace and a chimney provide a way out for the smoke of a fire. The Real Academia give the origin of the Spanish word as "Celto-latin camminus, a word of hispanic origin; cf the Celto-iberian camanon". This does not help much as I know little or nothing about the Celtic languages. Is my explanation of a German-Latin-Spanish connexion correct, or just yet another bizarre coincidence?