The word Casator is misspelled against Causator, a noun meaning "One who causes."
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Word contains consecutive vowels 'AU' in between alphabets c & sator is misspelled as 'A' as letter 'U' is phonetically ignored
Wrong Spelling:  c-a-sator 
Correct Spelling:  c-au-sator 
Find more incorrect spellings of Causator to spell right way.