Obs. rare. [f. L. type *exortūra f. exorīrī (see EXORT).] Rise, origin.
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1578. Banister, Hist. Man, I. 20 b. Whiche [processes] rising also from the sides of the Vertebres, do erect their exorture vpwardes. Ibid., I. 31 b. From whence [the ridge of Ilium] especially flow Ligamentes, and the exorture of these Muscles, that constitute the buttockes.
