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polyarchy

noun
poly·​ar·​chy | \-kē\
plural -es

Definition of polyarchy 

1 : government by many persons : control of especially political leaders by their followers — compare hierarchy

2 : a group of many kingdoms filled Europe with a colorful polyarchy of innumerable tribes— D. C. Peattie

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History and Etymology for polyarchy

Greek polyarchia, from polyarchos ruling over many (from poly- + archos ruler) + -ia -y

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