Commissionaire or Commissionnaire: How To spell?
The word Commissionaire is misspelled against Commissionnaire, a noun meaning "An agent or factor; a commission merchant."
Commissionnaire has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings commissio & aire which should not be misspelled with single 'N'
Wrong Spelling:  commissio-n-aire  Correct Spelling:  commissio-nn-aire 
Find more incorrect spellings of Commissionnaire to spell right way.