Sejyin or Sejein: How To spell?

The word Sejyin is misspelled against Sejein, a verb meaning "To separate."

Word contains consecutive vowels 'EI' in between alphabets sej & n is misspelled as 'YI'
Wrong Spelling:  sej-yi-n 
Correct Spelling:  sej-ei-n 
Find more wrongly spelled words of Sejein to spell it well.