Custicness or Causticness: How To spell?

The word Custicness 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 'U' as letter 'A' is phonetically igno
Wrong Spelling: c-u-sticness
Correct Spelling: c-au-sticness
Check more misspelled words of Causticness to spell it correct.