Where does “galon” come from?

galon (Swedish) comes from French galon, from Latin galum, from Vulgar Latin *galla, from Gaulish gallā, from Proto-Germanic gallǭ, from Proto-Indo-European ǵʰelh₃- — to flourish; green, yellow.

galon (Swedish): thick plastic-coated fabric (used in for example rainwear and seats in vehicles)