Whereun or Wherein: How To spell?

The word Whereun is misspelled against Wherein, an adverb meaning "In what; -- used interrogatively."

Word contains consecutive vowels 'EI' in between alphabets wher & n is misspelled as 'EU'
Wrong Spelling:  wher-eu-n 
Correct Spelling:  wher-ei-n 
Check more misspelled words of Wherein to spell it correct.