νεηκής
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
Greek (Liddell-Scott)
νεηκής: -ές, (ἀκή) ὁ νεωστὶ ἀκονηθείς, Ἰλ. Ν. 391, Π. 484· Δωρ. νεᾱκής, Ἡσύχ. Περὶ τοῦ τονισμοῦ ἴδε Spitzn εἰς Ἰλ. Ζ. 77.