Thist or Theist: How To spell?

The word Thist is misspelled against Theist, a noun meaning "One who believes in the existence of a God; especially, one who believes in a personal God; -- opposed to atheist."

Word contains consecutive vowels 'EI' in between alphabets th & st is misspelled as 'I' as letter 'E' is phonetically ignored
Wrong Spelling:  th-i-st 
Correct Spelling:  th-ei-st 
Find more wrongly spelled words of Theist to spell it well.