ἀθετέω, 
-ῶ; future 
ἀθετήσω; 1 aorist 
ἠθέτησα; a word met with first (yet very often) in the 
Sept. and Polybius; 
a. properly, to render 
ἄθετον; 
do away with θετόν τί, 
i. e. something laid down, prescribed, established: 
διαθήκην, 
Galatians 3:15 (1 Macc. 11:36; 2 Macc. 13:25, etc.); according to the context, 'to act toward anything as though it were annulled'; hence, to deprive a law of force by opinions or acts opposed to it, to transgress it, 
Mark 7:9; 
Hebrews 10:28 (
Ezekiel 22:26); 
πίστιν, to break one's promise or engagement, 
1 Timothy 5:12; (Polybius 8, 2, 5; 11, 29, 3, others; Diodorus excerpt. [
i. e. de virt. et vit.], p. 562, 67). Hence,
b. to thwart the efficacy of anything, nullify, make void, frustrate: 
τὴν βουλὴν τοῦ θεοῦ, 
Luke 7:30 (they rendered inefficacious the saving purpose of God); 
τὴν σύνεσιν to render prudent plans of no effect, 
1 Corinthians 1:19 (
Isaiah 29:14 [where 
κρύψω, yet cf. Bos's note]).
c. to reject, refuse, slight; 
τὴν χάριν τοῦ θεοῦ, 
Galatians 2:21 [others refer this to b.]; of persons: 
Mark 6:26 (by breaking the promise given her); 
Luke 10:16; 
John 12:48; 
1 Thessalonians 4:8; 
Jude 1:8 (for which 
καταφρονεῖν is used in the parallel passage 
2 Peter 2:10).
[For examples of the use of this word see 
Sophocles' Lexicon, under the word.) 
    THAYER’S GREEK LEXICON, Electronic Database.
     Copyright © 2002, 2003, 2006, 2011 by Biblesoft, Inc.
     All rights reserved. Used by permission. 
    BLB Scripture Index of Thayer's