wampum (n.)youdaoicibaDictYouDict[wampum 词源字典]
string of seashell beads used as money by Native Americans, 1630s, shortened from New England Algonquian wampumpeag (1620s), "string of white (shell beads);" said to be compounded from wab "white" + ompe "string" + plural suffix -ag.[wampum etymology, wampum origin, 英语词源]