[ou.bli.ette] n [F, fr. MF, fr. oublier to forget, fr. (assumed) VL oblitare, freq. of L oblivisci to forget--more at oblivion] (1819): a dungeon with an opening only at the top
OUBLIETTE
Meaning of OUBLIETTE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012