Sisypheyn or Sisyphean: How To spell?
The word Sisypheyn is misspelled against Sisyphean, an adjective meaning "Relating to Sisyphus; incessantly recurring; as, Sisyphean labors."
Sisyphean has vowels 'ea' together mispronounced as 'ey'Word contains consecutive vowels 'EA' in between alphabets sisyph & n is misspelled as 'EY'
Wrong Spelling:  sisyph-ey-n  Correct Spelling:  sisyph-ea-n 
Find more wrongly spelled words of Sisyphean to spell it well.