Athism or Atheism: How To spell?

The word Athism is misspelled against Atheism, meaning "The denial of the existence of God."

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