prunella (n.)youdaoicibaDictYouDict[prunella 词源字典]
stout textile used for men's robes and gowns, 1650s, from French prunelle, noun use of adjective meaning "plum-colored," from prunelle, diminutive of prune "plum" (see prune (n.)).[prunella etymology, prunella origin, 英语词源]