ὡς τάχος
From LSJ
Σιγᾶν ἄμεινον ἢ λαλεῖν, ἃ μὴ πρέπει → Decet tacere quam loqui, quae non decet → Schweig besser still, als dass du sagst, was du nicht darfst
Greek > English (Woodhouse)
as fast as possible, as quickly as possible, as soon as possible, as speedily as possible