The Phrygian mode (pronounced /ˈfrɪdʒiən/) can refer to three different musical modes: the ancient Greek tonos or harmonia, sometimes called Phrygian, formed on a particular set of octave species or scales; the medieval Phrygian mode, and the modern conception of the Phrygian mode as a diatonic scale, based on the latter.
https://en.wikipedia.org/wiki/Phrygian_mode