acra
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
Latin > English (Lewis & Short)
acra: ōrum, n., also ae, f., = ἄκρα,
I a promontory or headland, App. de Mundo prooem.: Acra Iapygia, a promontory in Magna Graecia, Plin. 3, 11, 16, § 100.
