Artificial intelligent assistant

umstride

umˈstride, v. Obs. rare.
  [f. um- + stride v.]
  trans. To bestride.

a 1352 Minot in Pol. Poems (Rolls) I. 68 The King of Beme had cares colde, That was ful hardy and bolde A stede to umstride. c 1400 Ywaine & Gaw. 1302 When he was dight in seker wede, Than he umstrade a nobil stede.

Oxford English Dictionary

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