Wiktionary
oubliettes
n. (plural of oubliette English)
Usage examples of "oubliettes".
Daisy tripped about the vaulted chambers, rustled her skirts in the corkscrew staircases, flirted back with a pretty little cry and a shudder from the edge of the oubliettes, and turned a singularly well-shaped ear to everything that Winterbourne told her about the place.