Caasator or Causator: How To spell?

The word Caasator is misspelled against Causator, a noun meaning "One who causes."

Word contains consecutive vowels 'AU' in between alphabets c & sator is misspelled as 'AA'
Wrong Spelling:  c-aa-sator 
Correct Spelling:  c-au-sator 
Find more incorrect spellings of Causator to spell right way.

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