vair (n.)youdaoicibaDictYouDict[vair 词源字典]
"squirrel fur," or some other kind of fur in use in the Middle Ages, c. 1300, from Old French vair "two-toned squirrel fur; fur garments" (12c.), from Latin varium, masculine accusative singular of varius "parti-colored" (see vary). Gray or black above and white below.[vair etymology, vair origin, 英语词源]