Excelencies or Excellencies: How To spell?
The word Excelencies is misspelled against Excellencies, which is plural of "Excellency"
Excellencies has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings exce & encies which should not be misspelled with single 'L'
Wrong Spelling:  exce-l-encies  Correct Spelling:  exce-ll-encies 
Find more wrongly spelled words of Excellencies to spell it well.