Aughteen or Eighteen: How To spell?

The word Aughteen is misspelled against Eighteen, a noun meaning "A symbol denoting eighteen units, as 18 or xviii."

Word begins with consecutive vowels 'EI' followed by alphabets 'ghteen' is misspelled as 'AU'
Wrong Spelling:  au-ghteen 
Correct Spelling:  ei-ghteen 
Check more misspelled words of Eighteen to spell it correct.