Tritheustical or Tritheistical: How To spell?

The word Tritheustical is misspelled against Tritheistical, an adjective meaning "pertaining to tritheism."

Word contains consecutive vowels 'EI' in between alphabets trith & stical is misspelled as 'EU'
Wrong Spelling:  trith-eu-stical 
Correct Spelling:  trith-ei-stical 
Check more misspelled words of Tritheistical to spell it correct.