plutocracy
rule by the wealthy
Today this word meansA system in which a moneyed few hold power.
Greek ploutos (wealth) + kratos (rule).
This word for wealth is also the name of Plutus, the god of wealth.
Worth noting
A different god from Plouton (Hades), king of the underworld. But because wealth comes out of the ground, the two were often conflated even in antiquity.