Comonalties or Commonalties: How To spell?
The word Comonalties is misspelled against Commonalties, which is plural of "Commonalty"
Commonalties has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings co & onalties which should not be misspelled with single 'M'
Wrong Spelling:  co-m-onalties  Correct Spelling:  co-mm-onalties 
Find more incorrect spellings of Commonalties to spell right way.