ἀκυρόω, (ῶ, 1 aorist ἠκύρωσα; (ἄκυρος without authority, not binding, void; from κῦρος force, authority), to render void, deprive of force and authority, (opposed to κυρόω to confirm, make valid): ἐντολήν, Mat_15:6 (R G; νόμον, ibid. T WH marginal reading); λόγον (Mat_15:6 L Tr WH text); Mar_7:13 (cf. ἀθετέω); διαθήκην, Gal_3:17. ((1Es_6:31); Diodorus, Dionysius Halicarnassus, Plutarch.)

ἀκυρόω akyroō 3x to deprive of authority, annul, cancel, Mat_15:6 ; Mar_7:13 ; Gal_3:17

**† ἀκυρόω , -ῶ ( < κῦρος , authority ), [in LXX : 1Es_6:32 ; 1Es_6:1-34 :2Ma_6:1-31 * ;] to revoke, invalidate ( MM , VGT , s.v. ): Mat_15:6 , Mar_7:13 , Gal_3:17 ( Plut .).†

ἀκυρόω [page 20] The adjective ἄκυρος is common in legal phraseology (e.g. it comes quarter in the Ptolemaic Hibeh papyri). It occurs in the new Median parchment, P SaΏd Khan 1 a. .23 (B.C. 88) ὃς ἂν δὲ ἐγβάλῃ κτλ . [ἔ ]στω ἄκυρος applied to a person , whose action is voided by illegality, a classical use. In the second parchment (B.C. 22) τήν τε ἀθέτησιν εἶναι αὐτὴν ἄκυρον , it has its normal Hellenistic force. Ἀκύρωσις goes with ἀθέτησις (see s.v. ), or is used by itself, especially in the phrase εἰς ἀκύρωσιν of a will or an I.O.U. received back to be cancelled : so P Oxy I. 107 .4 f. (A.D. 123) ἀνέλαβον παρὰ σοῦ εἰς ἀκύρωσιν , ib. III. 490 .3 f. (A.D. 124) πρὸς ἀκύρωσιν ἄγειν τήνδε τὴν διαθήκην , to revoke this will. The verb occurs in the same sense P Oxy III. 491 .3 (A.D. 126), 494 .4 (A.D. 156), 495 .3 (A.D. 181 9), etc. : cf. Syll 329 .30 (i/B.C.) ἠκυρῶσθαι τὰς κ [α ]τ᾽ αὐτῶν ἐκγραφὰς καὶ ὀφειλήμ [ατα ].

ἀκυρόω, -ῶ (κῦρος, authority), [in LXX: 1Es.6:32 Est.6:1-34, 2Ma.6:1-31 * ;] to revoke, invalidate (MM, VGT, see word): Mat.15:6, Mrk.7:13, Gal.3:17 (Plut.).† (AS)