There are 14 words that start with 'reatta'.
| reattach | reattack | 
| reattain | reattacks | 
| reattains | reattached | 
| reattaches | reattacked | 
| reattained | reattaching | 
| reattacking | reattaining | 
| reattachment | reattachments | 
Note: These 14 words that start with 'reatta' are found from the USA & Canada version of the tournament Scrabble word list.