A dungeon with a trapdoor in the ceiling as its only means of entrance or exit.
A concealed dungeon having a trap door in the ceiling as its only opening.
Other Word Forms
Origin of oubliette
- French from oublier to forget from Old French oblider from Vulgar Latin oblītāre from Latin oblītus past participle of oblīvīscī lei- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition