From Parthian 𐭐𐭓𐭇𐭕 (prht /⁠frahāt⁠/), itself from Old Iranian *frahāta- (literally “gained, earned”). Compare Old Armenian Հրահատ (Hrahat), Classical Syriac ܐܦܪܗܛ ('prht), Ancient Greek Ἀφραάτης (Aphraátēs), Φραάτης (Phraátēs) (from which Phraātēs), Φραδάτης (Phradátēs), Iranian borrowings.