διασῴζω · diasōizō — LSJ
preserve through a danger, of persons, Ἀπόλλωνα δ. κατακρύψασα Hdt. 2.156; δ. πόλιν E. Ph. 783; δ. τινὰ ἐκ κινδύνων Isoc. 1.23:—Med., save for oneself, τὰ πλείστου ἄξια X. Cyr. 4.2.28:—Pass., Pl. Ti. 22d; come safe through, τοὺς διασωθέντας Id. R. 540a, cf. 1 Ep.Pet. 3.20, etc.; διασῴζεσθαι ἐς . . or πρός . . to come safe to a place, Th. 4.113, X. An. 5.4.5, etc.; recover from illness, Id. Mem. 2.10.2.
of things, preserve, maintain, ἀνδρὶ τἀμὰ δ. λέχη . . E. Hel. 65; keep in memory, X. Mem. 3.5.22; δ. πίστιν τινί Id. HG 7.2.17; δ. τὸν πρῶτον λόγον Pl. R. 395b, cf. Arist. Ph. 189b1; τὰ παλαιά Isoc. 10.63:—Med., preserve for oneself, retain, εὐδαιμονίαν, εὐτυχίαν, Th. 3.39, 5.16; δόξαν Lys. 2.69; τὴν τῶν Μήδων μαλακίαν X. Cyr. 8.8.15.