ἐπέμψατε ἀγγέλους τοῖς ἀλλήλοις ὥστε ἔγνωτε τὸν κίνδυνον → you sent messengers to one another so that you knew the danger
by reduplication from גָּלַל; a wheel; by analogy, a whirlwind; also dust (as whirled): heaven, rolling thing, wheel.
