Letheun or Lethean: How To spell?

The word Letheun is misspelled against Lethean, an adjective meaning "pertaining to Lethe; resembling in effect the water Lethe."

Lethean has vowels 'ea' together mispronounced as 'eu'
Word contains consecutive vowels 'EA' in between alphabets leth & n is misspelled as 'EU'
Wrong Spelling:  leth-eu-n 
Correct Spelling:  leth-ea-n 
Check more misspelled words of Lethean to spell it correct.

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