σιγᾶν ἄμεινον ἢ λαλεῖν ἃ μὴ πρέπει → it's better to keep silence than to say what's not appropriate (Menander)
bright: P. and V. λαμπρός; see bright.
glossy: Ar. and P. λιπαρός.
variegated: P. and V. ποικίλος, Ar. and V. αἰόλος.