Quick Definition
ἀκυρόω v. I annul, make of no effect, cancel
Strong's Definition
from 1 (as a negative particle) and 2964; to invalidate
KJV Usage: disannul, make of none effect
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἀκυρόω, -@; 1 aor. ἠκύρωσα; (ἄκυρος without authority, not binding, void; fr. κῦρος force, authority), to render void, deprive of force and authority, (opp. to κυρόω to confirm, make valid): ἐντολήν, Mt. xv. 6 [R G; νόμον, ibid. T WH mrg.]; λόγον [ibid. L Tr WH txt.]; Mk. vii. 13, (cf. dOeréw) ; διαθήκην, Gal. iii. 17. ([1 Esdr. vi. 31]; Diod., Dion. Hal., Plut.)
Mounce Concise Greek Dictionary
ἀκυρόω akyroō 3x
to deprive of authority, annul, cancel, Mt. 15:6; Mk. 7:13; Gal. 3:17*
Abbott-Smith Greek Lexicon
**† ἀκυρόω, -ῶ
(< κῦρος, authority), [in LXX: I Es 6:32, IV Mac6*;]
to revoke, invalidate (MM, VGT, s.v.): Mt 15:6, Mk 7:13, Ga 3:17 (Plut.).†
Moulton & Milligan — Vocabulary of the Greek NT
ἀκυρόω. The adjective ἄκυρος is common in legal phraseology (e.g. it comes ygzvafer in the Ptolemaic Hibeh papyri). It occurs in the new Median parchment, P Safd Khan 14-28 (B.c. 88) ὃς ἂν δὲ ἐγβάλῃ κτλ. [ἔστω ἄκυρος applied to a person, whose action is voided by illegality, a classical use. In the second parchment (B.C. 22) τήν Te ἀθβέτησιν εἶναι αὐτὴν ἄκυρον, it has its normal Hellenistic force. ᾿Ακύρωσις goes with ἀθέτησις (see 5.v.), or is used by itself, especially in the phrase els ἀκύρωσιν of a will or an I.0.U. received back to be cancelled: so P Oxy I. 1074! (A.D. 123) ἀνέλαβον παρὰ σοῦ els ἀκύρωσιν, 73. III. 400 8 (A.D. 124) πρὸς ἀκύρωσιν ἄγειν τήνδε τὴν διαθήκην, ‘to revoke this will.” The verb occurs in the same sense P Oxy III. 491° (a.. 126), 4944 (A.D. 156), 4953 (A.D. 181-9), etc.: cf. Sy// 329°° (i/B.c.) ἠκυρῶσθαι τὰς κ[α]τ᾽ αὐτῶν ἐκγραφὰς Kal ὀφειλήμ[ατα!.
Liddell-Scott-Jones — Greek-English Lexicon
ἀκυρόω (akuroō) — to nullify. ἀκῡρόω, cancel, set aside, ψήφισμα, δόγμα, [Refs 4th c.BC+] (passive, [Refs 1st c.BC+]
2. set at naught, treat as of no effect, [LXX+NT+1st c.AD+]
2. b reject, deny the validity of, [Refs 1st c.BC+]
3. metaphorically, render powerless, τῷ λογισμῷ τὸν τῶν παθῶν οἶστρον[LXX]
