Astism or Asteism: How To spell?

The word Astism is misspelled against Asteism, a noun meaning "Genteel irony; a polite and ingenious manner of deriding another."

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