LSJ
II
hinder, thwart, τὸ θεῖον ἐνεπόδιζέ με Ar. Av. 965, cf. Lys. 359, X. Cyr. 2.3.10; τοὺς τῆς πόλεως καιρούς Aeschin. 3.223; ἐ. τοῦ ἰέναι to hinder from . . , Pl. Cra. 419c; πρός τι in a thing, Isoc. Ep. 4.11, Arist. Pol. 1341a6, al., Ph. 1.466:— Pass., χαἱ σοφαὶ γνῶμαι . . ἐμποδίζονται θαμά S. Ph. 432; ἐμποδίζοιτο ἂν μὴ πράττειν would be hindered from doing, Pl. Smp. 183a; τῆς εἰς τοὔμπροσθε πορείας D.S. 14.28.
IV
having had a favourable crisis, convalescent, σωμάτιον Isoc. Ep. 4.11, cf. Hsch.; but, indicating a good crisis, favourable, of symptoms, Hp. Coac. 604, Antyll. ap. Orib. 9.4.2: metaph., Men. Pk. 163.
strike down, τινὸς εἰς τὴν κατακλεῖδα [ ξίφος] PMag.Par. 1.300: usu. metaph., strike with amazement, astound, terrify, κατέπλησσεν ἐπὶ τὸ φοβεῖσθαι Th. 2.65; ὁ φόβος κ. τὰς ψυχάς X. Cyr. 3.1.25; καταπλήξειν ᾤετο τὸν δῆμον D. l.c.; κ. τοὺς ἀκροατάς, of orators, Arist. Rh. 1408a25; -πλῆξαί τινα τῇ προδοσίῃ tax him with his treachery, Hdt. 8.128 (v.l. -πλέξαι); browbeat, bully, POxy. 237 viii 10 (ii A. D.):— Med., -πλήξασθαι τοὺς ὑπεναντίους Plb. 3.89.1, cf. D.S. 11.77, Jul. Or. 6.191a, etc.:— Pass., to be panic-stricken, astounded, most freq. in aor.2 and pf. ( pres., Eup. 159.10), κατεπλήγη φίλον ἦτορ Il. 3.31; -πλαγῆναι τῷ πολέμῳ Th. 1.81; τῷ πλήθει Id. 4.10; μὴ -πέπληχθε ἄγαν Id. 7.77: c. acc., πάνυ τοῦτʼ ἐπαινῶ καὶ -πλήττομαι Eup. l.c.; τὴν ἀπειρίαν τὴν αὑτοῦ -πεπλῆχθαι Isoc. Ep. 4.11; μηδὲν -πλαγέντες τὸν Φίλιππον Decr. ap. D. 18.185; -πεπλῆχθαι τὸν βίον Id. 37.43 codd.; -πεπληγμένοι τὸν στόλον Plb. 1.20.6; to be amazed at, τὴν ἀπαθίαν τινῶν Phld. Sto.Herc. 339.7: later intr. in pf. -πέπληγα, plpf. -πεπλήγη App. Mith. 19, Paus. 10.22.2, Luc. DMeretr. 13.2: esp. in part., -πεπληγότες τὸ τῶν Ῥωμαίων τάχος D.H. 6.25, etc.; τὸ περιδεὲς καὶ -πεπληγός abject terror, Plu. Comp.Pel.Marc. 1.
II
mischief, bane, plague, used by A. alone of Trag., πρέπει σ. the mischief is revealed, Ag. 389 (lyr.); σ. ἐσθημάτων ruin to them, ib. 561; σ. πολυκτόνον, of Helen, ib. 734 (lyr.); pest, of the ἀστήρ (star-fish), Arist. HA 548a9; σ. πρὸς εὐκαρπίαν Thphr. CP 2.7.5.— Ion. word, very rare in Att. Prose, Isoc. Ep. 4.11. [ σῐ, A. Il.cc., Nic. Th. 1, 653; but σῑνεα Id. Al. 231.]
Dim. of σῶμα, small body, poor body, Isoc. Ep. 4.11, Epicur. Fr. 181, Gnathaena ap. Ath. 13.584b, etc.; ἀσθένεια τοῦ σ. PHerc. 1041.1; of a sick manʼs body, PCair.Zen. 254 (iii B.C.), Gal. 13.1025, cf. Agathin. ap. Orib. 10.7.4; of an animal, Arist. Fr. 339; of an infant, Sor. 1.117.