Dungoen or Dungeon: How To spell?

The word Dungoen is misspelled against Dungeon, a noun meaning "A close, dark prison, common/, under ground, as if the lower apartments of the donjon or keep of a castle, these being used as prisons."

Word contains consecutive vowels 'EO' in between alphabets dung & n is misspelled as 'OE'
Wrong Spelling:  dung-oe-n 
Correct Spelling:  dung-eo-n 
Check more misspelled words of Dungeon to spell it correct.