Comutation or Commutation: How To spell?
The word Comutation is misspelled against Commutation, a noun meaning "A passing from one state to another; change; alteration; mutation."
Commutation has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings co & utation which should not be misspelled with single 'M'
Wrong Spelling:  co-m-utation  Correct Spelling:  co-mm-utation 
Check more misspelled words of Commutation to spell it correct.