Esel or Eisel: How To spell?

The word Esel is misspelled against Eisel, a noun meaning "Vinegar; verjuice."

Word begins with consecutive vowels 'EI' followed by alphabets 'sel' is misspelled as 'E' as letter 'I' is phonetically ignored
Wrong Spelling:  e-sel 
Correct Spelling:  ei-sel 
Explore spell check of Eisel to spell without errors.