Ostyn or Ostein: How To spell?

The word Ostyn is misspelled against Ostein, a noun meaning "Ossein."

Word contains consecutive vowels 'EI' in between alphabets ost & n is misspelled as 'Y'
Wrong Spelling:  ost-y-n 
Correct Spelling:  ost-ei-n 
Navigate all incorrect spellings of Ostein to spell it right.