noun
old imported article; antique import
Refers to a precious item that was imported into Japan during or before the Muromachi period (1336–1573). Often used in the context of art, ceramics, or textiles.
この茶碗は古渡りの品で、室町時代に中国から渡来したものだ。
This tea bowl is an old imported article, brought from China during the Muromachi period.