Aaster or Auster: How To spell?

The word Aaster is misspelled against Auster, a noun meaning "The south wind."

Word begins with consecutive vowels 'AU' followed by alphabets 'ster' is misspelled as 'AA'
Wrong Spelling:  aa-ster 
Correct Spelling:  au-ster 
Explore spell check of Auster to spell without errors.

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