←
Old English dung (inherited)
←
Middle English dungeon (inherited)
←
Middle English dungun (mention)
←
Middle English dung (cognate)
←
Middle English dong (mention)
←
Old High German tung (cognate)
←
Proto-Indo-European *dʰengʰ- (derived)
←
Old Saxon dung (cognate)
→
English dunny (mention)
→
Japanese ダンジョン (borrowed)