There are 11 words that start with 'rehy'.
| rehydrate | rehydrated |
| rehydrates | rehydrating |
| rehydration | rehypnotize |
| rehydratable | rehydrations |
| rehypnotized | rehypnotizes |
| rehypnotizing | |
Note: These 11 words that start with 'rehy' are found from the USA & Canada version of the tournament Scrabble word list.