ἀμύνω: 1 aorist middle ἠμυνάμην; (allied with Latinmunio,moenia, etc., Vanicek, p. 731; Curtius, § 451); in Greek writings (from Homer down) to ward off, keep off anything from anyone, τί τίνι, accusative of the thing and the dative of person; hence, with a simple dative of the person, to aid, assist anyone (Thucydides 1, 50; 3, 67, elsewhere). Middle ἀμύνομαι, with accusative of person, to keep off, ward off, anyone from oneself; to defend oneself against anyone (so also 2Ma_10:17; Wis_11:3; the Sept. Jos_10:13); to take vengeance on anyone (Xenophon, an. 2, 3,23; Josephus, Antiquities 9, 1, 2): Act_7:24, where in thought supply τόν ἀδικοῦντα (cf. Buttmann, 194 (168) note; Winer's Grammar, 258 (242)). STRONGS NT 292a: ἀμφιβάλλωἀμφιβάλλω; to throw around, equivalent to περιβάλλω, of a garment (Homer, Odyssey 14, 342); to cast to and fro now to one side now to the other: a net, Mar_1:16 G L T Tr WH (according to T Tr WH used absolutely; cf. οἱ ἀμφιβολεῖς, Isa_19:8). (Hab_1:17.)

ἀμύνομαι amynomai 1x to ward off; to help, assist; to repel from oneself, resist, make a defence; to assume the office of protector and avenger, Act_7:24

ἀμύνω , [in LXX ( mid .): Jos_10:13 ( H5358 ), Psa_118:10-12 H4135 hi .), Isa_59:16 ( H3467 hi .), Wis_11:3 , al. ;] to ward off, etc. Mid . (a) to defend oneself against; (b) to requite; (c) = act. , to defend, assist (Isa, l.c .): c . acc pers ., Act_7:24 ( MM , VGT , s.v. ).†

ἀμύνομαι [page 28] Syll 356 35 (rescript of Augustus) καὶ [ὅτε ἠ ]μύνοντο . The word may have almost fallen out of the colloquial language, to judge from its rarity in LXX and NT, and the absence of occurrences in papyri.

ἀμύνω [in LXX (mid.): Jos.10:13 (נָקַם), נָקַם), Psa.118:10-12 מוּל hi.), Isa.59:16 (יָשַׁע hi.), Wis.11:3, al. ;] to ward off, etc. Mid. __(a) to defend oneself against; __(b) to requite; __(with) = act., to defend, assist (Isa, l.with): with accusative of person(s), Act.7:24 (MM, VGT, see word).† (AS)