There are 14 words that end with 'affing'.
| baffing | daffing | 
| naffing | gaffing | 
| waffing | yaffing | 
| chaffing | piaffing | 
| staffing | quaffing | 
| sclaffing | restaffing | 
| overstaffing | understaffing | 
Note: These 14 words that end with 'affing' are found from the USA & Canada version of the tournament Scrabble word list.