νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → it's fitting for a young man to keep silence rather than to speak (Menander)
v. *εἴδω.
see εἴδω (II.)
ἠείδη: v. l. ἠείδει эп. 3 л. sing. ppf. к *εἴδω.