Rufling or Ruffling: How To spell?
The word Rufling is misspelled against Ruffling, which is present continuous of "Ruffle"
Ruffling has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Ru & ling which should not be misspelled with single 'F'
Wrong Spelling:  Ru-f-ling  Correct Spelling:  Ru-ff-ling 
Check more misspelled words of Ruffling to spell it correct.