There are 10 words that start with 'decrep'.
| decrepit | decrepitly |
| decrepitate | decrepitude |
| decrepitated | decrepitates |
| decrepitudes | decrepitating |
| decrepitation | decrepitations |
Note: These 10 words that start with 'decrep' are found from the USA & Canada version of the tournament Scrabble word list.