The word Cesion is misspelled against Cession, meaning "Surrender, as of possessions or rights."
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Cession has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings ce & ion which should not be misspelled with single 'S'
Wrong Spelling:  ce-s-ion 
Correct Spelling:  ce-ss-ion 
Find more incorrect spellings of Cession to spell right way.