"person who rules or sways a community or society by virtue of his wealth; person possessing power or influence solely or mainly on account of his riches," 1838, a back-formation from plutocracy. Related: Plutocratic (1843); plutocratical (1833).
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plush
plutarchy
Pluto
plutocracy
plutocrat
plutogogue
plutolatry
plutomania
pluton
Plutonian