προσδιορίζω
From LSJ
λογισάμενος ὅτι καὶ ἐκ νεκρῶν ἐγεῖραι δυνατὸς ὁ Θεός → in the belief that God was able to raise him up from the dead
English (LSJ)
A define, specify besides, D.20.130; π. διὰ τίν' αἰτίαν . . Arist.de An.407b16; ἐν τίνι καὶ ποίῳ . .ib.414a23, al.:—Med., Id.EN 1139b32, Metaph.1005b21, al.:—Pass., προσδιωρίσθω . . τὰ εἰωθότα ib. 1005b27, cf. Ph.1.514. 2 Med., maintain besides, μηδὲν ἀπαντήσειν Plb.32.3.10, cf.Plu.Nic.7.