Bithaism or Bitheism: How To spell?
The word Bithaism is misspelled against Bitheism, a noun meaning "Belief in the existence of two gods; dualism."
Word contains consecutive vowels 'EI' in between alphabets bith & sm is misspelled as 'AI'Wrong Spelling:  bith-ai-sm  Correct Spelling:  bith-ei-sm 
Find more wrongly spelled words of Bitheism to spell it well.