κεκρατημένως
From LSJ
Ὁ δὲ μὴ δυνάμενος κοινωνεῖν ἢ μηδὲν δεόμενος δι' αὐτάρκειαν οὐθὲν μέρος πόλεως, ὥστε ἢ θηρίον ἢ θεός → Whoever is incapable of associating, or has no need to because of self-sufficiency, is no part of a state; so he is either a beast or a god
English (LSJ)
Adv., (κρατέω)
A in a masterly manner, ἀποδεδωκέναι Hipparch.1.8.11, cf. Phld.Po.5.26, 29. 2 vigorously, v.l. in D.H. Comp.25. 3 positively, S.E.M.11.42.