κεκρατημένως
From LSJ
Ὁ μὲν βίος βραχύς, ἡ δὲ τέχνη μακρή, ὁ δὲ καιρὸς ὀξύς, ἡ δὲ πεῖρα σφαλερή, ἡ δὲ κρίσις χαλεπή → Life is short, art long, opportunity fleeting, experience misleading and judgment difficult
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.