Casation or Cassation: How To spell?
The word Casation is misspelled against Cassation, a noun meaning "The act of annulling."
Cassation has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings ca & ation which should not be misspelled with single 'S'
Wrong Spelling:  ca-s-ation  Correct Spelling:  ca-ss-ation 
Find more incorrect spellings of Cassation to spell right way.