νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → it's fitting for a young man to keep silence rather than to speak (Menander)
P. and V. θόρυβος, ὁ, P. θροῦς, ὁ; see noise, shout, confusion.
make an uproar, v.: Ar. and P. θορυβεῖν.