There are 12 words that start with 'deterr'.
| deterred | deterrer |
| deterrent | deterrers |
| deterring | deterrable |
| deterrence | deterrents |
| deterrences | deterrently |
| deterrability | deterrabilities |
Note: These 12 words that start with 'deterr' are found from the USA & Canada version of the tournament Scrabble word list.