Centour or Centaur: How To spell?

The word Centour is misspelled against Centaur, a noun meaning "A constellation in the southern heavens between Hydra and the Southern Cross."

Word contains consecutive vowels 'AU' in between alphabets cent & r is misspelled as 'OU'
Wrong Spelling:  cent-ou-r 
Correct Spelling:  cent-au-r 
Check more misspelled words of Centaur to spell it correct.

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