There are 10 words that end with 'fixing'.
| fixing | affixing | infixing | 
| refixing | unfixing | prefixing | 
| suffixing | postfixing | reaffixing | 
| transfixing | ||
Note: These 10 words that end with 'fixing' are found from the USA & Canada version of the tournament Scrabble word list.