Eficacy or Efficacy: How To spell?

The word Eficacy is misspelled against Efficacy, meaning "production of a desired result"

Efficacy has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings E & icacy which should not be misspelled with single 'F'
Wrong Spelling:  E-f-icacy 
Correct Spelling:  E-ff-icacy 
Find more wrongly spelled words of Efficacy to spell it well.

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