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From The Collaborative International Dictionary of English v.0.48:
Uprun \Up*run"\, v. i. To run up; to ascend. [1913 Webster] The young sun That in the Ram is four degrees uprun. --Chaucer. [1913 Webster] [A son] of matchless might, who, like a thriving plant, Upran to manhood. --Cowper. [1913 Webster]