Niping or Nipping: How To spell?
The word Niping is misspelled against Nipping, an adjective meaning "Biting; pinching; painful; destructive; as, a nipping frost; a nipping wind."
Nipping has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings ni & ing which should not be misspelled with single 'P'
Wrong Spelling:  ni-p-ing  Correct Spelling:  ni-pp-ing 
Find more wrongly spelled words of Nipping to spell it well.