From Longman Dictionary of Contemporary Englishplutocracyplu‧toc‧ra‧cy /pluːˈtɒkrəsi $ -ˈtɑːk-/ noun (plural plutocracies) [countable] PGRICHa ruling class or government that consists of rich people, or a country that is governed by rich people
Examples from the Corpus
plutocracy• Some were outright extensions of traditional hierarchies, while others were predominantly recruited from the new plutocracy and professions.Origin plutocracy (1600-1700) Greek ploutokratia, from ploutos “wealth” + -kratia “-cracy” 