Sufixed or Suffixed: How To spell?
The word Sufixed is misspelled against Suffixed, which is past tense of "Suffix"
Suffixed has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Su & ixed which should not be misspelled with single 'F'
Wrong Spelling:  Su-f-ixed  Correct Spelling:  Su-ff-ixed 
Check more misspelled words of Suffixed to spell it correct.