uncrown means to deprive of the monarchy or other authority or status. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why “uncrown” is a great word
UNCROWN — [Verb] To deprive of a crown or of sovereign authority and status. From Middle English *uncrounen*, from the prefix *un-* (expressing reversal or deprivation) + *crown* (from Old French *corone*, from Latin *corōna*, "garland, crown"). First recorded in use before 1400. Unlike "dethrone," which focuses on the loss of the seat of power, or "depose," which emphasizes a formal removal from office, to uncrown is the definitive, physical inversion of coronation: the cold wrench of gold from a brow still warm, the public shearing of gilt from a ceremonial portrait, the hollow echo where a crown's weight once rested. The act renders authority not just contested, but physically absent, leaving the memory of its pressure as the only proof it was ever there.
Etymology
From Middle English uncoroun, uncroun, uncrowne; equivalent to un- + crown.
verb
- To deprive of the monarchy or other authority or status.“Tell him from me that he hath done me wrong,
And therefore I’ll uncrown him ere’t be long.”
- To remove a crown from (often figuratively).“When rigid Cold in Ice hath all things bound,
And Forrests of their Summers pride uncrown’d.”