There are 15 words that start with 'decer'.
| decern | decerns |
| decerned | decerning |
| decertify | decerebrate |
| decertified | decertifies |
| decerebrated | decerebrates |
| decertifying | decerebrating |
| decerebration | decerebrations |
| decertification | |
Note: These 15 words that start with 'decer' are found from the USA & Canada version of the tournament Scrabble word list.