Catoan or Cataian: How To spell?

The word Catoan is misspelled against Cataian, a noun meaning "A native of Cathay or China; a foreigner; -- formerly a term of reproach."

Word contains consecutive vowels 'AI' in between alphabets cat & an is misspelled as 'O'
Wrong Spelling:  cat-o-an 
Correct Spelling:  cat-ai-an 
Find more incorrect spellings of Cataian to spell right way.

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