From Old French cenacle.
cenacle (plural cenacles)
- a dining room, especially one on an upper floor (traditionally the room in which the Last Supper took place)
- (by extension) a small circle or gathering of specialists (writers etc); a clique
1881, Robert Louis Stevenson, Virginibus Puerisque:
- I remember an anecdote of a well-known French theorist, who was debating a point eagerly in his cenacle. It was objected against him that he had never experienced love.