[ oo-blee-et ]
/ ˌu bliˈɛt /


a secret dungeon with an opening only in the ceiling, as in certain old castles.


Origin of oubliette

1810–20; < French, Middle French, equivalent to oubli(er) to forget, Old French oblider < Vulgar Latin *oblītāre, derivative of Latin oblītus (past participle of oblīvīscī to forget; see oblivion) + Middle French -ette -ette
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for oubliette

British Dictionary definitions for oubliette


/ (ˌuːblɪˈɛt) /


a dungeon, the only entrance to which is through the top

Word Origin for oubliette

C19: from French, from oublier to forget
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for oubliette



"secret dungeon reached only via trapdoor," 1819, from French oubliette (14c.), from Middle French oublier "to forget, show negligence," Old French oblier, oblider, from Vulgar Latin *oblitare, from Latin oblitus, past participle of oblivisci "to forget" (see oblivion).

Online Etymology Dictionary, © 2010 Douglas Harper