jasper (1) — ONAD

jasper1 /ˈjaspər, ˈdʒæspər

▸ noun

1 an opaque reddish-brown variety of chalcedony.

2 a kind of hard fine porcelain invented by Josiah Wedgwood and used for Wedgwood cameos and other delicate work.

– ORIGIN Middle English (originally denoting any bright-colored chalcedony other than carnelian): from Old French jasp(r)e, from Latin iaspis, from Greek, of oriental origin. The origin of sense 3 is uncertain.