The word Promethein is misspelled against Promethean, a noun meaning "A kind of lucifer match."
-->
Promethean has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets prometh & n is misspelled as 'EI'
Wrong Spelling:  prometh-ei-n 
Correct Spelling:  prometh-ea-n 
Find more incorrect spellings of Promethean to spell right way.