There are 14 words that start with 'gruf'.
| gruff | gruffs | gruffy |
| gruffed | gruffer | gruffly |
| gruffest | gruffier | gruffily |
| gruffing | gruffish | gruffiest |
| gruffness | gruffnesses | |
Note: These 14 words that start with 'gruf' are found from the USA & Canada version of the tournament Scrabble word list.