μάχαιρα, -ης

(Att.. -ας; see WH, App. 1568; ΒΙ. § 7, 1), ἡ, [in LXX chiefly for חֶרֶב; also for מַאֲכֶלֶת, etc. ;]

__1. (in Hom. al.) a large knife or dirk, for sacrificial purposes (Gen.22:6, 10, Jdg.19:20 A).

__2. a short sword or dagger (as disting. from ῥομφαία, a large broad sword and ξίφος, a straight sword for thrusting): Mat.26:47 ff. Mrk.14:43, 47-48, Luk.22:36 ff. Jhn.18:10-11 Act.16:27, Heb.11:37, Rev.6:4 13:10, 14; στόμα μαχαίρης (as in Heb. חֶרֶב פֶּה, Gen.34:26, al.), the edge of the sword: Luk.21:24, Heb.11:34; μ. δίστομος, Heb.4:12; ἀναιρεῖν μαχαίρῃ, Act.12:2; τὴν μ. φορεῖν, Rom.13:4. Metaphorical, Mat.10:34 (opposite to εἰρήνη), Rom.8:35; μ. τοῦ πνεῦματος, Eph.6:17.†

(AS)

a large knife; dirk; a short sword; dagger; the edge of the sword