Seyntologist or Saintologist: How To spell?

The word Seyntologist is misspelled against Saintologist, a noun meaning "One who writes the lives of saints."

Word contains consecutive vowels 'AI' in between alphabets s & ntologist is misspelled as 'EY'
Wrong Spelling:  s-ey-ntologist 
Correct Spelling:  s-ai-ntologist 
Find more incorrect spellings of Saintologist to spell right way.

You might be interested to know

Steyr or Stair?

Susteynment or Sustainment?

Thomeysm or Thomaism?