Cousinet or Coussinet: How To spell?
The word Cousinet is misspelled against Coussinet, a noun meaning "A stone placed on the impost of a pier for receiving the first stone of an arch."
Coussinet has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings cou & inet which should not be misspelled with single 'S'
Wrong Spelling:  cou-s-inet  Correct Spelling:  cou-ss-inet 
Check more misspelled words of Coussinet to spell it correct.