ἐν ταῖς ἀνάγκαις χρημάτων κρείττων φίλος → it is better in times of need to have friends rather than money, a friend in need is a friend indeed (Menander, Sententiae monostichoi 143)
P. and V. βομβεῖν (Sophocles, Fragment), V. θωύσσειν.
make a noise(generally): P. and V. ψοφεῖν.
noise(generally): P. and V. ψόφος, ὁ.