The word Chafer is misspelled against Chaffer, a noun meaning "Bargaining; merchandise."
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Chaffer has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Cha & er which should not be misspelled with single 'F'
Wrong Spelling:  Cha-f-er 
Correct Spelling:  Cha-ff-er 
Explore spell check of Chaffer to spell without errors.