vernalis

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)

vernālis: e, adj. ver,
I of or belonging to spring, vernal: horae, Manil. 3, 258: facies terrae, Aug. Civ. Dei, 7, 25.