pentarchy

The story

1. Middle French · borrowed frompentarchie
2. Ancient Greek · derived fromπενταρχίᾱ
3. Late Latin · borrowed frompentarchia
4. English todaypentarchy

From Late Latin pentarchia, from Ancient Greek πενταρχίᾱ (pentarkhíā), from πεντα- (penta-, “penta-, five”) + -αρχίᾱ (-arkhíā, “-archy, rule”), perhaps via Middle French pentarchie. Equivalent to pent- + -archy.