From Longman Dictionary of Contemporary Englishwampumwam‧pum /ˈwɒmpəm $ ˈwɑːm-/ noun [uncountable] SAshells put into strings, belts etc, used in the past as money by Native Americans
Examples from the Corpus
wampum• Have you checked out the price of wampum these days?Origin wampum (1600-1700) wampumpeag “wampum”, from Narragansett, from wampan “white” + api “string” + -ag (plural suffix) 