Trithystical or Tritheistical: How To spell?

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

Word contains consecutive vowels 'EI' in between alphabets trith & stical is misspelled as 'Y'
Wrong Spelling:  trith-y-stical 
Correct Spelling:  trith-ei-stical 
Find more wrongly spelled words of Tritheistical to spell it well.