Where does “φορείο” come from?

φορείο (Greek) comes from Ancient Greek φορεῖον, from Ancient Greek φορά, from Ancient Greek φέρω, from Proto-Hellenic pʰérō, from Proto-Indo-European bʰéreti, from Proto-Indo-European bʰēr- — shiny, light brown.

φορείο (Greek): stretcher, litter