There are 13 words that start with 'lepr'.
| leprose | leprosy | 
| leprous | leprotic | 
| leprosies | leprously | 
| leprechaun | leprosaria | 
| leprechauns | lepromatous | 
| leprosarium | leprosariums | 
| leprechaunish | |
Note: These 13 words that start with 'lepr' are found from the USA & Canada version of the tournament Scrabble word list.