There are 10 words that start with 'proscr'.
| proscribe | proscribed |
| proscriber | proscribes |
| proscribers | proscribing |
| proscription | proscriptive |
| proscriptions | proscriptively |
Note: These 10 words that start with 'proscr' are found from the USA & Canada version of the tournament Scrabble word list.