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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
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.
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Classic usage
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