Cavstically or Caustically: How To spell?
The word Cavstically is misspelled against Caustically, an adverb meaning "In a caustic manner."
Word contains consecutive vowels 'AU' in between alphabets c & stically is misspelled as 'AV'Wrong Spelling:  c-av-stically  Correct Spelling:  c-au-stically 
Find more wrongly spelled words of Caustically to spell it well.