νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → it's fitting for a young man to keep silence rather than to speak (Menander)
căvum: i, v. cavus, I. B.
căvum,¹³ ī, n. (cavus), trou [seult au pl.] : Liv. 24, 34, 9 ; Sen. Nat. 3, 28, 5.