ἀτρέκεια
ὁ δὲ μὴ δυνάμενος κοινωνεῖν ἢ μηδὲν δεόμενος δι' αὐτάρκειαν οὐθὲν μέρος πόλεως, ὥστε ἢ θηρίον ἢ θεός → a man who is incapable of entering into partnership, or who is so self-sufficing that he has no need to do so, is no part of a state, so that he must be either a lower animal or a god | 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)
ἡ, Ion. ἀτρεκ-είη, also ἀτρεκίη Man.3.229: (ἀτρεκής):—
A precise truth, certainty, Pi.Fr.213.4; τῶν ἡμεῖς ἀτρεκείην ἴδμεν Hdt.4.152, cf. 6.1; μαθεῖν . . τὴν ἀ. ὅτι οὐκ αἱρέει learnt for certain that he is unable to take it, ib.82, cf. IG9(1).880 (Corc.): in pl., τὰς -ας τὰς λεγομένας Hp.Prorrh.2.3. II Ἀτρέκεια personified, Strict Justice, Pi. O.10(11).13, E.Fr.91.