Succesionist or Successionist: How To spell?
The word Succesionist is misspelled against Successionist, a noun meaning "A person who insists on the importance of a regular succession of events, offices, etc.; especially (Eccl.), one who insists that apostolic succession alone is valid."
Successionist has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings succe & ionist which should not be misspelled with single 'S'
Wrong Spelling:  succe-s-ionist  Correct Spelling:  succe-ss-ionist 
Check more misspelled words of Successionist to spell it correct.