uncase

From un- +‎ case.

uncase (third-person singular simple present uncases, present participle uncasing, simple past and past participle uncased)

1. (transitive, obsolete) To skin or flay.
2. (transitive, intransitive) To strip (someone); to undress.
   • 1755, Miguel de Cervantes, translated by Tobias Smollett, Don Quixote, Volume 1, I.8:

     Sancho Panza seeing the fryar on the ground, leaped from his ass with great agility, and beginning to uncase him [translating quitar los habitos] with the utmost dexterity, two of their servants came up, and asked for what reason he stripped their master?

3. (transitive) To take out of a case or covering; to uncover.
4. (transitive, military) To display, or spread to view, as a flag, or the colors of a military body.

• Cesuna, usance