Mesieurs or Messieurs: How To spell?
The word Mesieurs is misspelled against Messieurs, a noun meaning "Sirs; gentlemen; -- abbreviated to Messrs., which is used as the plural of Mr."
Messieurs has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings me & ieurs which should not be misspelled with single 'S'
Wrong Spelling:  me-s-ieurs  Correct Spelling:  me-ss-ieurs 
Check more misspelled words of Messieurs to spell it correct.