There are 14 words that start with 'reprob'.
| reprobe | reprobed | reprobes | 
| reprobate | reprobing | reprobance | 
| reprobated | reprobates | reprobances | 
| reprobating | reprobation | reprobative | 
| reprobatory | reprobations | |
Note: These 14 words that start with 'reprob' are found from the USA & Canada version of the tournament Scrabble word list.