The word Intercesion is misspelled against Intercession, meaning "Entreaty in behalf of others."
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Intercession has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings interce & ion which should not be misspelled with single 'S'
Wrong Spelling:  interce-s-ion 
Correct Spelling:  interce-ss-ion 
Find more incorrect spellings of Intercession to spell right way.