Atheest or Atheist: How To spell?

The word Atheest is misspelled against Atheist, a noun meaning "A godless person."

Word contains consecutive vowels 'EI' in between alphabets ath & st is misspelled as 'EE'
Wrong Spelling:  ath-ee-st 
Correct Spelling:  ath-ei-st 
Explore spell check of Atheist to spell without errors.