Hereunafter or Hereinafter: How To spell?

The word Hereunafter is misspelled against Hereinafter, an adverb meaning "In the following part of this (writing, document, speech, and the like)."

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