Autothaest or Autotheist: How To spell?

The word Autothaest is misspelled against Autotheist, a noun meaning "One given to self-worship."

Word contains consecutive vowels 'EI' in between alphabets autoth & st is misspelled as 'AE'
Wrong Spelling:  autoth-ae-st 
Correct Spelling:  autoth-ei-st 
Check more misspelled words of Autotheist to spell it correct.