To deprive of a sheath; to draw from the sheath or scabbard, as a sword.(verb)
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Use "unsheath" in a sentence
"His right hand doth his sword unsheath, his left doth pluck his beard; --"
"Grand prix racing has its fair share of knights of the realm – Sir Stirling Moss, Sir Jackie Stewart, Sir Frank Williams, Australia's Sir Jack Brabham – but no one has ever come up with a satisfactory explanation for the continued refusal of the Queen to unsheath her sword and tap John Surtees on the shoulder."
"But as Michele Bachmann discovered, Leno can have a sharp edge when he chooses to unsheath it."