arduum
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 > French (Gaffiot 2016)
ardŭum,¹¹ ī, n. (arduus), hauteur, montagne : [au sing. seult avec prép.] pedites, ut per arduum leni gradu ducuntur Liv. 38, 21, 3, l’infanterie, en raison de la raideur de la pente, s’avance au petit pas ; ardua terrarum Virg. En. 5, 695, les montagnes.
Latin > English
arduum ardui N N :: steep/high place, heights, elevation; arduous/difficult/hard task; challenge