Perisological or Perissological: How To spell?
The word Perisological is misspelled against Perissological, an adjective meaning "Redundant or excessive in words."
Perissological has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings peri & ological which should not be misspelled with single 'S'
Wrong Spelling:  peri-s-ological  Correct Spelling:  peri-ss-ological 
Find more incorrect spellings of Perissological to spell right way.