English
endungeon
From en- + dungeon.
Vulgar Latin *dominiōnem ‘donjon’
Old French donjon ‘keep of a castle’
Anglo-Norman donjun ‘keep of a castle’
Middle English dongeoun ‘keep of a castle’
English dungeon
Today it means
verb To confine in a dungeon.
Language periods are conventional ranges, not dates for this word.
Etymograph / endungeon