ἀρχαιοπαράδοτος

From LSJ

ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod

Source

Greek (Liddell-Scott)

ἀρχαιοπαράδοτος: -ον, ὁ ἀρχαιόθεν παραδεδομένος, Φωτ. Ἐπιστ. σ. 3.