ἀκρόλοφος
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)
ον,
A high-crested, peaked, πρῶνες Opp.C.1.418; πέτραι AP12.185 (Strat.):—Subst., mountain crest, Plu.Publ.22.