Dictionary entry

τάχος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

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.†