ἀλκή · alkē — LSJ
strength as displayed in action, prowess, courage, poet. word (also in Hdt., Th., and later Prose, Ti.Locr. 103b, Arist. EN 1115b4, Pol. 1338a20, etc.), in Hom. joined with σθένος Il. 17.212, Od. 22.237; with μένος Il. 9.706; with ἠνορέη Od. 24.509; ἐπιειμένοι ἀλκήν Il. 8.262; φρεσὶν εἱμένος ἀλκήν 20.381; δύεσθαι ἀλκήν 9.231:—later, χερὸς ἀλκᾷ Pi. O. 10(11).100; θηρία ἐς ἀλκὴν ἄλκιμα Hdt. 3.110: generally, force, might, συνῆψαν ἀλκήν E. Supp. 683; κατʼ ἀλκήν, opp. κατὰ σύνεσιν, Arr. Tact. 12.11:
strength to avert danger, defence, help, Διὸς ἀ. Il. 15.490, cf. 8.140; οὐδέ τις ἀ. Od. 12.120, 22.305; ποῦ τις ἀ.; A. Pr. 546; ἀ. βελέων S. Ph. 1151; δορός E. Ph. 1098: also ἀ. τινος defence or aid against thing, Hes. Op. 201, Pi. N. 7.96, S. OT 218; ἀλκὴν ποιεῖσθαι give aid, OC 459; ἀ. τιθέναι make a defence, ib. 1524; ἐς or πρὸς ἀ. τρέπεσθαι turn and resist, stand on oneʼs guard, Hdt. 2.45, 3.78, Th. 2.84; στρέψας πρὸς ἀ. E. Andr. 1149; ἐς ἀ. ἐλθεῖν Id. Ph. 421; ἀλκῆς μεμνῆσθαι Hdt. 9.70; ἐν
battle, fight, A. Th. 498, 569, 878 codd., E. Med. 264.