speedily
From LSJ
πάντες γὰρ οἱ λαβόντες μάχαιραν ἐν μαχαίρῃ ἀπολοῦνται → all they that take the sword shall perish with the sword
English > Greek (Woodhouse)
adverb
P. and V. τάχα, ταχύ, ἐν τάχει, διὰ τάχους, σπουδῇ, V. σὺν τάχει, ἐκ ταχείας, θοῶς, τάχος, Ar. and P. ταχέως, P. ὀξέως.
as speedily as possible: P. and V. ὡς τάχιστα, Ar. and V. ὡς τάχος, ὅσον τάχος.