Entry: oubliettes (n.)
In context: See previous.
Definition: A secret dungeon with access only through a trapdoor in its ceiling. Now chiefly in extended use.
Other: How cool is this?
< French oubliette (late 14th cent. in Middle French, 1536 in figurative use) < oublier to forget (c1000 in Old French as oblider ;
SNOOT score: 2
Source: Oxford English Dictionary