bona-roba (n.)

"a showy wanton" [Johnson], 1590s, from Italian buonaroba "as we say good stuffe, that is a good wholesome plum-cheeked wench" [Florio], literally "fine gown," from buona "good" (from Latin bonus "good;" see bonus) + roba "robe, dress, stuff, gear," from a Germanic source (see robe (n.)).