Supremely superior; of the highest possible rank or authority, combining arch- (chief) with supreme.
From Greek archi- (chief, first) + Latin supremus (highest). A rare English formation combining two supremacy-indicating roots, likely from 17th-18th century philosophical or religious writing.
This word stacks two 'highest' ideas on top of each other—archi-supreme is like saying 'supremely supreme'—which is exactly what medieval and Renaissance writers did when they ran out of single words powerful enough to describe God or absolute authority!
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