depurgo
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)
dē-purgo: no
I perf., ātum, 1, v. a., to clean out, cleanse (rare): prata, Cato R. R. 50, 1: acina, id. ib. 112, 2: terram ab herba, id. 151: caules lactucae, Col. 12, 9, 1: sordes, id. 9, 14, 13: pisces, Plaut. Stich. 2, 2, 35.—
II Esp. as med. t. t., to cleanse, clear, purge: eas partes ex quibus sputa feruntur, Cael. Aur. Acut. 2, 18, 110; so absol.: aquae genus, quod potionibus depurgat, Vitr. 8, 3, 5.