decrown

verb4

1. •
   To deprive of a crown; to discrown.

   • the Popes […] authority to decrowne Kings — 1630
2. •
   (figurative) To deprive of supremacy or exaltedness.

   • Laughter for laughter's sake and the allied mocking of social values and decrowning of all dogmatic forms of authority this entails. — 2013
3. •
   To decoronate (a tooth).
4. •
   To remove the crown of a pineapple, strawberry, etc.