Hygiaest or Hygieist: How To spell?

The word Hygiaest is misspelled against Hygieist, a noun meaning "A hygienist."

Word contains consecutive vowels 'EI' in between alphabets hygi & st is misspelled as 'AE'
Wrong Spelling:  hygi-ae-st 
Correct Spelling:  hygi-ei-st 
Find more wrongly spelled words of Hygieist to spell it well.