What is the origin of emporium?
Emporium with its Latin ending –um still looks foreign. In Latin, emporium means “trade center, business district, market town.” The Latin word means something larger and more permanent than the Greek original empórion “trading station, trading post, entrepôt.” Empórion is a derivative of emporía “commerce, trade, business,” itself a derivative of émporos “passenger on a ship, traveler, merchant, trade.” The compound noun émporos breaks down into em-, a variant of en– “in, on,” and póros “way, passage, journey.” Póros derives from the Proto-Indo-European root per-, por-, pṛ– “to lead, pass, pass over.” Per– is the source of English firth and fjord (both from Old Norse fjǫrth, inflectional stem firth-, from Germanic ferthuz “ford”). The variant por– is the source of Old English faran “to go on a journey, get along” (English fare). The suffixed form por–eyo– forms the causative Germanic verb farjan “to make go, lead,” which becomes ferian in Old English and ferry in English. The variant pŗ– forms the Latin nouns porta “door, gate,” portus “port, harbor,” and the verb portāre “to carry, transport.” Emporium entered English in the second half of the 16th century.