There are 14 words that start with 'decap'.
| decapod | decapods |
| decapodal | decapodan |
| decapitate | decapodans |
| decapodous | decapitated |
| decapitates | decapitator |
| decapitating | decapitation |
| decapitators | decapitations |
Note: These 14 words that start with 'decap' are found from the USA & Canada version of the tournament Scrabble word list.