Hygeast or Hygeist: How To spell?

The word Hygeast 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 'EA'
Wrong Spelling:  hyg-ea-st 
Correct Spelling:  hyg-ei-st 
Explore spell check of Hygeist to spell without errors.