Syntuary or Seintuary: How To spell?

The word Syntuary is misspelled against Seintuary, a noun meaning "Sanctuary."

Word contains consecutive vowels 'EI' in between alphabets s & ntuary is misspelled as 'Y'
Wrong Spelling:  s-y-ntuary 
Correct Spelling:  s-ei-ntuary 
Check more misspelled words of Seintuary to spell it correct.