ἄχρι and 
ἄχρις (the latter of which in the 
N. T. is nowhere placed before a consonant, but the former before both vowels and consonants, although euphony is so far regarded that we almost constantly find 
ἄχρι ἧς ἡμέρας, 
ἄχρις οὗ, cf. Buttmann, 10 (9); [Winer's Grammar, 42]; and 
ἄχρι οὗ is not used except in 
Acts 7:18 and 
Revelation 2:25 by 
L T Tr WH and 
Luke 21:24 by 
T Tr WH; [to these instances must now be added 
1 Corinthians 11:26 T WH; 
1 Cor 15:25 T WH; 
Romans 11:25 WH (see their Appendix, p. 148); on the usage in secular authors ('where 
-ρι is the only Attic form, but in later authors the epic 
-ρις prevailed', Liddell and Scott, under the word) cf. 
Lobeck, Pathol. Elementa, vol. ii., p. 210f; 
Rutherford, New Phryn., p. 64; further, 
Klotz ad Devar. vol. ii. 1, p. 230f]); a particle indicating the terminus ad quem. (On its use in the Greek writings cf. Klotz as above, p. 224ff). It has the force now of a preposition now of a conjunction, 
even to; until, to the time that; (on its derivation see below).
1. as a preposition it takes the genitive [cf. Winer's Grammar, § 54, 6], and is used
a. of place: 
Acts 11:5; 
Acts 13:6; 
Acts 20:4 [T Tr marginal reading WH omit; Tr text brackets]; 
Acts 28:15; 
2 Corinthians 10:13; 
Hebrews 4:12 (see 
μερισμός, 2); 
Revelation 14:20; 
Revelation 18:5.
b. of Time: 
ἄχρι καιροῦ, until a season that seemed to him opportune, 
Luke 4:13 [but cf. 
καιρός, 2 a.]; until a certain time, 
for a season, Acts 13:11; [
ἄχρι (vel 
μέχρι, which see 1 a.) 
τοῦ θερισμοῦ, 
Matthew 13:30 WH marginal reading cf. 
ἕως, II. 5]; 
ἄχρι ἧς ἡμέρας until the day that etc. 
Matthew 24:38; 
Luke 1:20; 
Luke 17:27; 
Acts 1:2; [
ἄχρι (
Rec. et al. 
ἕως) 
τῆς ἡμέρας ἧς, 
Acts 1:22 Tdf.]; 
ἄχρι ταύτης τῆς ἡμέρας and 
ἄχρι τῆς ἡμέρας ταύτης, 
Acts 2:29; 
Acts 23:1; 
Acts 26:22; 
ἄχρι [
-ρις R G] 
ἡμερῶν πέντε even to the space of five days, 
i. e. after 
[A. V. in] five days, 
Acts 20:6; 
ἄχρις [
-ρι T Tr WH] αὐγῆς, 
Acts 20:11; 
ἄχρι τοῦ νῦν, 
Romans 8:22; 
Philippians 1:5; 
ἄχρι τέλους, 
Hebrews 6:11; 
Revelation 2:26; see besides, 
Acts 3:21; [
Acts 22:22]; 
Romans 1:13; 
Romans 5:13; 
1 Corinthians 4:11; 
2 Corinthians 3:14; 
Galatians 4:2; 
Philippians 1:6 [
-ρι L T WH].
c. of Manner and Degree: 
ἄχρι θανάτου, 
Acts 22:4 (even to delivering unto death); 
Revelation 2:10 (to the enduring of death itself); 
Revelation 12:11; and, in the opinion of many interpreters, 
Hebrews 4:12 [see 
μερισμός, 2].
d. joined to the relative 
οὗ (
ἄχρις οὗ for 
ἄχρι τούτου, 
ᾧ) it has the force of a conjunction, 
until, to the time that: followed by the indicative preterite, of things that actually occurred and up to the beginning of which something continued, 
Acts 7:18 (ἄχρις οὗ ἀνέστη βασιλεύς); 
Acts 27:33. followed by a subjunctive aorist having the force of a future perfect, 
Luke 21:24 L T Tr WH; Romans 11:25; 
1 Corinthians 11:26 [
Rec. ἄχρις οὗ ἄν]; 
Galatians 3:19 [not WH text (see 2 below)]; 
Galatians 4:19 [T Tr WH 
μέχρις]; 
Revelation 7:3 Rec.elz G; 
ἄχρις οὗ ἄν until, whenever it may be [cf. Winer's Grammar, § 42, 5 b.], 
1 Corinthians 15:25 [
Rec.]; 
Revelation 2:25. with indicative present 
as long as: 
Hebrews 3:13; cf. Bleek at the passage and Buttmann, 231 (199).
2. ἄχρις without 
οὗ has the force of a simple conjunction, 
until, to the time that: followed by subjunctive aorist, 
Luke 21:24 R G; 
Revelation 7:3 L T Tr WH; 
Rev 15:8; [
Revelation 17:17 Rec.]; 
Revelation 20:3 [
Rev 20:5 G L T Tr WH]; with indicative future, 
Revelation 17:17 [L T Tr WH]; [
ἄχρις ἄν followed by subjunctive aorist, 
Galatians 3:19 WH text (see 1 d. above)]. Since 
ἄχρι is akin to 
ἀκή and 
ἀκρός [but cf. Vanicek, p. 22; Curtius, § 166], and 
μέχρι to 
μῆκος, 
μακρός, by the use of the former particle the reach to which a thing is said to extend is likened to a height, by the use of 
μέχρι, to a length; 
ἄχρι, indicating ascent, signifies 
up to; 
μέχρι, indicating extent, is 
unto, as far as; cf. Klotz as above, p. 225f. But this primitive distinction is often disregarded, and each particle used of the same thing; cf. 
ἄχρι τέλους, 
Hebrews 6:11; 
μέχρι τέλους, 
Hebrews 3:6, 
14; Xenophon, symp. 4, 37 
περίεστί μοι καὶ ἐσθίοντι ἄχρι τοῦ μὴ πεινῆν ἀφικέσθαι καὶ πίνοντι μέχρι τοῦ μὴ διψῆν. Cf. Fritzsche on 
Romans 5:13, vol i., p. 308ff; [Ellicott on 
2 Timothy 2:9. 
Ἄχρι occurs 20 times in the writings of Luke; elsewhere in the four Gospels only in 
Matthew 24:38.]. 
    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