medullosus

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)

mĕdullōsus: a, um, adj. id.,
I full of marrow, marrowy (post-Aug.): umerus, Cels. 8, 1, 102 sq.