pres. pple. Obs. (Origin and meaning obscure; the alliteration requires tw.)

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c. 1400.  Destr. Troy, 6360. The xij [= twelfth] vnthwyuond, þat twyet not in fight, Was … mightful Henex. Ibid., 6378. With xxij [= two and twenty] vnthwyuond twyet to filde.

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