ravis
From LSJ
ὁ δὲ πείσεται εἰς ἀγαθόν περ → he will obey you to his profit, he will obey you for his own good end
Latin > English (Lewis & Short)
rāvis: acc. ravim, f. kindr. with ravus, q. v.,
I hoarseness (ante- and post-class., and only occurring in the acc. sing.): usque ad ravim poscam, Plaut. Aul. 2, 5, 10: expurigabo hercle omnia ad raucam ravim, id. Fragm. ap. Non. 164, 19: (tragoedi) boando purgant ravim, App. Flor. p. 357, 36.