Commisionnaire or Commissionnaire: How To spell?
The word Commisionnaire is misspelled against Commissionnaire, a noun meaning "An agent or factor; a commission merchant."
Commissionnaire has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings commi & ionnaire which should not be misspelled with single 'S'
Wrong Spelling:  commi-s-ionnaire  Correct Spelling:  commi-ss-ionnaire 
Find more incorrect spellings of Commissionnaire to spell right way.