κηρυκική

From LSJ

ἄνω ποταμῶν ἱερῶν χωροῦσι παγαί → the springs of sacred rivers flow upward, backward to their sources flow the streams of holy rivers

Source

Russian (Dvoretsky)

κηρῡκική: ἡ (sc. τέχνη) должность или искусство глашатая Plat.