cardamum
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)
cardămum: i, n., = κάρδαμον>,
I a kind of cress (pure Lat. nasturtium), Scrib. Comp. 129; App. Herb. 20; Hier. adv. Jovin. 2, 13.