Acusatival or Accusatival: How To spell?
The word Acusatival is misspelled against Accusatival, an adjective meaning "Pertaining to the accusative case."
Accusatival has double "cc" is mispronounced as "c"Remember double 'CC' in between the strings A & usatival which should not be misspelled with single 'C'
Wrong Spelling:  A-c-usatival  Correct Spelling:  A-cc-usatival 
Check more misspelled words of Accusatival to spell it correct.