unmantle means to divest of a mantle; to uncover. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From un- + mantle.
verb
- To divest of a mantle; to uncover.“Meanwhile the earl, for he was of no inferior rank, returned his lady's caress with the most affectionate ardour, but affected to resist when she strove to take his cloak from him. “Nay,” she said, “but I will unmantle you[…]””