Quick Definition
τάχος, ους, τό n.n. quickness, speed
Strong's Definition
from the same as 5036; a brief space (of time), i.e. (with 1722 prefixed) in haste
KJV Usage: + quickly, + shortly, + speedily
UBS Dictionary of the Greek New Testament
noun, n. | -ους | ταχύς
67.111 · Time · Duration of Time without Reference to Points or Units of Time: Time, Spend Time, Always, Eternal, Old, Immediately, Young
a very short while, quickly (in combination with the preposition ἐν) a very brief period of time In ACT 22:18 τάχος evidently refers to a brief period of time before fulfilling the admonition to leave Jerusalem.
LUK 18:8 · ACT 12:7 · ACT 22:18 · ACT 25:4 · ROM 16:20 · 1TI 3:14 · REV 1:1 · REV 22:6
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
τάχος, -ous, τό, fr. Hom. down, quickness, speed: ἐν τάχει (often in Grk. writ. fr. Aeschyl. and Pind. down), quickly, shortly, Acts xii. 7; xxii. 18; [xxv. 4]; Ro. xvi. 20; speedily, soon, (Germ. in Balde), Lk. xviii. 8; 1 Tim. ili. 14 L Tr WH; Rev. Ὁ 1: xxii. 6.
Mounce Concise Greek Dictionary
τάχος tachos 8x
swiftness, speed, quickness; ἐν τάχει, with speed, quickly, speedily; soon, shortly, Lk. 18:8; Acts 25:4; hastily, immediately, Acts 12:7; 22:18; Rom. 16:20; 1 Tim. 3:14; Rev. 1:1; 22:6*
Abbott-Smith Greek Lexicon
τάχος, -ους, τό
[in LXX chiefly for parts and derivatives of מָהַר ;]
swiftness, speed. Adverbially, ἐν τ. (= ταχέως), quickly, speedily, soon: Lk 18:8, Ac 12:7 22:18 25:4, Ro 16:20, I Ti 3:14, Re 1:1 22:6.†
Moulton & Milligan — Vocabulary of the Greek NT
τάχος, “quickness ’’: PSI IV. 3261 (8.6. 261-0) ἔντειλαι τῶι παρά σου, ἵνα τὸ τάχος yélyn]rat, and P Oxy I. 5915 (A.D. 292) ἵν᾽... ἡ τάχος ἐκδημῆσαι, ‘in order that no time be lost in his departure’ (Edd.): cf PSI IV. 44414 7 τεῖχος (11718.6.} πειρῶ δέ μοι ὅ τι τάχος γράψειν "Eppwoo, and P Bouriant 10% (B.c, 88) ἀσ]φαλισάμενος [μέχρι τοῦ καὶ [ἡμᾶ]ς ὅτι τάχος [ἐπι]βαλεῖν πρὸς σέ. The word is common in adverbial phrases with a preposition, e.g. P Oxy I. 62 versol® (ili/a.b.) τὴν ἐμβολὴν ποιῆσαι διὰ τάχους, ‘to do the lading quickly ἡ (Edd.), 7. VI. 892° (A.D. 338) διὰ ταχέων ταῦτα ἐκκόψας παρενεχθῆναι, “ with all speed to get the timber cut and delivered’”’ (Edd.) ; PSI IV. 38014 (8.0. 249-8) καλῶς δ᾽ ἂν ποιήσαις ἐν τάχει (cf. Lk 188, a/.) αὐτὸν ἀποστείλας, Ῥ Giss I. 6910 (A.D. 118-9) πᾶσαν τὴν... [K]peOyv ἐν τάχει αὐτῷ ἐπιστεῖλαι, and P Oxy VII. 1069% (iii/A.D.) καλῶς ποιήσεις ἀναγκάσε γενέστε (/. ἀναγκάσαι γενέσθαι) μου τὸ κειθών ε[ε]ν (/. κιθώνιν) τὸ λευκὸν κατὰ τάχοζυ)ς, ‘you will do well to have my white tunic made quickly © (Ed.).
Liddell-Scott-Jones — Greek-English Lexicon
τάχος (tachos) — speed. τάχος [ᾰ], εος, τό, (ταχύς) swiftness, speed, ἵπποισι.., οἷσιν Ἀθήνη νῦν ὤρεξε τ. [Refs 8th c.BC+]: plural, velocities, [Refs 5th c.BC+]
2. τ. φρενῶν quickness of temper, hastiness, [Refs 5th c.BC+]; falsa lectio in [Refs 5th c.BC+]; τ. τῆς ψυχῆς quickness of apprehension, [Refs]
II. τάχος is frequently used in Adverbial phrases for ταχέως, absolutely in accusative, [Refs 5th c.BC+]; also in dative, τάχει ὁμοίως with like velocities, [Refs 5th c.BC+]; εἰς τάχος [Refs 5th c.BC+]; κατὰ τὸ τ. [Refs 3rd c.BC+]; μετὰ τάχους [Refs 5th c.BC+]; μετὰ παντὸς τ. with all speed, [Refs 3rd c.AD+]; σὺν τάχει [Refs 5th c.BC+] ={ὡς τάχιστα}, [Refs 5th c.BC+]; ὅσον τάχος [Refs 5th c.BC+]; ᾗ (Doric dialect ᾇ) τάχος [Refs 5th c.BC+]