Artificial intelligent assistant

door-case

ˈdoor-case
  [case n.2 5.]
  The case or frame lining a doorway, in which the door is hung.

1596–7 Bond in Ducarel Hist. Croydon App. (1783) 154, x d. the foote for the dore cases. 1665 Pepys Diary 7 Sept., The window-cases, door-cases, and chimneys, of all the house are marble. 1762–71 H. Walpole Vertue's Anecd. Paint. (1786) III. 147 Door-cases of alabaster with rich foliage. 1886 Willis & Clark Cambridge I. 489 The west door-case..appears to be of the same yellow stone.

Oxford English Dictionary

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