Where does “αδιαφορία” come from?

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

αδιαφορία (Greek): indifference