Eficiently or Efficiently: How To spell?
The word Eficiently is misspelled against Efficiently, an adverb meaning "With effect; effectively."
Efficiently has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings E & iciently which should not be misspelled with single 'F'
Wrong Spelling:  E-f-iciently  Correct Spelling:  E-ff-iciently 
Find more wrongly spelled words of Efficiently to spell it well.