ἔγνω δὲ φώρ τε φῶρα καὶ λύκος λύκον → the thief knows the thief and the wolf knows the wolf, and thief knows thief and wolf his fellow wolf, set a thief to catch a thief
P. and V. ἀφρός, ὁ (Plato, Timaeus 83D).
spray: P. and V. ζάλη, ἡ (Plato), V. πέλανος, ὁ.
burst into froth: V. ἐξανθεῖν, ἀφρὸν καχλάζειν, ἐξαφρίζεσθαι.
