Hygyst or Hygeist: How To spell?

The word Hygyst is misspelled against Hygeist, a noun meaning "One skilled in hygiena; a hygienist."

Word contains consecutive vowels 'EI' in between alphabets hyg & st is misspelled as 'Y'
Wrong Spelling:  hyg-y-st 
Correct Spelling:  hyg-ei-st 
Navigate all incorrect spellings of Hygeist to spell it right.