Artificial intelligent assistant

cylour

cyllowre, cylour, -ure
  var. of celure Obs., ceiling, canopy. So cylured a., ceiled, canopied.

c 1440 Promp. Parv. 77 Cyllowre (P. cylere), celatura. Ibid., Cylured (v. rr. -uryd, -ered), celatus.

Oxford English Dictionary

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