ingeniculus
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)
in-gĕnĭcŭlus: a, um, adj. in-geniculum,
I kneeling: Ingeniculus, sc. Hercules, a constellation: in extremis partibus oritur Ingeniculus, qui a Graeeis ἐν γόνασιν dicitur, Firm. Math. 8, 17: ingenicla (by sync. for ingenicula) imago, Manil. 5, 645; v. ‡ engonasi.