τραγοσκελής
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)
ές,
A goat-shanked, applied to Pan, Hdt.2.46, Duris 21 J., Luc.DDeor.22.2, App.Anth.6.191, etc.