Neuter singular of the comparative of tachus (as adverb); more swiftly, i.e. (in manner) more rapidly, or (in time) more speedily -- out (run), quickly, shortly, sooner.
see GREEK tachus
[τάχειον, WH for τάχιον (which see; and cf. under the word εἰ, ἰ.) ταχέως (ταχύς), adverb (from Homer down), quickly, shortly: Luke 14:21; Luke 16:6; John 11:31; 1 Corinthians 4:19; Galatians 1:6; Philippians 2:19, 24; 2 Timothy 4:9; with the added suggestion of inconsiderateness (hastily): 2 Thessalonians 2:2; 1 Timothy 5:22. STRONGS NT 5032: τάχιοντάχιον (WH τάχειον; see their Appendix, p. 154 and cf. εἰ, ἰ) (neuter of the comparitive ταχίων), adverb, for which the more ancient writers used θᾶσσον or θᾶττον, see Lob. ad Phryn., p. 76f; Winers Grammar, § 11, 2a.; (Buttmann, 27 (24)); more swiftly, more quickly: in comparison, John 20:4 (cf. Winers Grammar, 604 (562)); with the suppression of the second member of the comparison (Winer's Grammar, 243 (228)): Hebrews 13:19 (sooner, namely, than would be the case without your prayers for me),23 (namely, than I depart); John 13:27 (namely, than you seem to have resolved to); 1 Timothy 3:14 R G T (namely, than I anticipated).