Whereyn or Wherein: How To spell?

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

Word contains consecutive vowels 'EI' in between alphabets wher & n is misspelled as 'EY'
Wrong Spelling:  wher-ey-n 
Correct Spelling:  wher-ei-n 
Explore spell check of Wherein to spell without errors.