ματαιολογία
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
English (LSJ)
ἡ,
A idle talk, Diogenian.Epicur.2.16, 1 Ep.Ti.1.6, Plu.2.6f, Vett.Val.150.24 (pl.), al., Porph.Abst.4.16.