<http://tingilinde.typepad.com/starstuff/2014/02/a-list-of-collective-nouns.html> Of course, business of ferrets comes from busyness of ferrets, just as the work term business comes from busyness. He combined collective nouns found in multiple sources, and business/ busyness is not alone for ferrets. There is an older term, too. [Posted in FML 8052]