Artificial intelligent assistant

festier

festier Obs. rare.
  Also festerie.
  [a. F. festiere (Cotgr.), festier (15th c.) ridge-tile, f. OF. fest (mod.F. faîte) ridge of a roof.]
  = fastigium 2.

1601 Holland Pliny II. 552 The images wherwith the festeries & lovers of the said church stood adorned. Ibid. 553 The festiers and lanterns of temples.

Oxford English Dictionary

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