Sisyphein or Sisyphean: How To spell?

The word Sisyphein is misspelled against Sisyphean, an adjective meaning "Relating to Sisyphus; incessantly recurring; as, Sisyphean labors."

Sisyphean has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets sisyph & n is misspelled as 'EI'
Wrong Spelling:  sisyph-ei-n 
Correct Spelling:  sisyph-ea-n 
Find more wrongly spelled words of Sisyphean to spell it well.

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