Siantess or Saintess: How To spell?

The word Siantess is misspelled against Saintess, a noun meaning "A female saint."

Word contains consecutive vowels 'AI' in between alphabets s & ntess is misspelled as 'IA'
Wrong Spelling:  s-ia-ntess 
Correct Spelling:  s-ai-ntess 
Find more wrongly spelled words of Saintess to spell it well.

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