The word Wheren is misspelled against Wherein, an adverb meaning "In what; -- used interrogatively."
-->
Word contains consecutive vowels 'EI' in between alphabets wher & n is misspelled as 'E' as letter 'I' is phonetically ignored
Wrong Spelling:  wher-e-n 
Correct Spelling:  wher-ei-n 
Explore spell check of Wherein to spell without errors.