פְּרָת

ταῦτα δηλώσω αὐτός τε νοσήσας καὶ αὐτὸς ἰδὼν ἄλλους πάσχοντας → I shall describe those symptoms, since I myself had the disease and witnessed as well what others were suffering

English (Strong)

from an unused root meaning to break forth; rushing; Perath (i.e. Euphrates), a river of the East: Euphrates.