hexarchy

[ hek-sahr-kee ]
/ ˈhɛk sɑr ki /

noun, plural hex·ar·chies.

a group of six allied states or kingdoms each under its own ruler.

Origin of hexarchy

First recorded in 1790–1800; hex- + -archy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019