Cousticness or Causticness: How To spell?

The word Cousticness is misspelled against Causticness, a noun meaning "The quality of being caustic; causticity."

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

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