DictionaryRoot: oubliette
French
oubliette
dungeon entered only from above
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noun
oubliette
oo-blee-ET/ˌubliˈɛt/
A hidden dungeon accessible only through an opening above.
Etymology
French oubliette comes from oublier, “to forget.” Its grim image is a place where a prisoner could be forgotten: such dungeons held people condemned to perpetual imprisonment or to perish secretly.