v. [UN-2 5.] trans. To take or bring out of a cask; fig. to open up.
1594. Nashe, Unfort. Trav., Wks. (Grosart), V. 69. Oratorie vncaske the bard hutch of thy complements, and with the triumphantest troupe in thy treasurie doe trewage vnto him.
1630. J. Taylor (Water P.), Eighth Wond. World, Wks. II. 60/1. If thou in kindnesse wilt accept this taske, Hereafter I will better things vn-caske.