Aathenticating or Authenticating: How To spell?

The word Aathenticating is misspelled against Authenticating, which is present continuous of "Authenticate"

--> Word begins with consecutive vowels 'AU' followed by alphabets 'thenticating' is misspelled as 'AA'
Wrong Spelling:  aa-thenticating 
Correct Spelling:  au-thenticating 
Find more wrongly spelled words of Authenticating to spell it well.

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