The word Saping is misspelled against Sapping, which is present continuous of "Sap"
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Sapping has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings sa & ing which should not be misspelled with single 'P'
Wrong Spelling:  sa-p-ing 
Correct Spelling:  sa-pp-ing 
Find more wrongly spelled words of Sapping to spell it well.