There are 21 words that start with 'marl'.
| marl | marls | 
| marly | marled | 
| marlin | marlier | 
| marline | marling | 
| marlins | marlite | 
| marliest | marlines | 
| marlings | marlites | 
| marlitic | marlstone | 
| marlstones | marlinspike | 
| marlinespike | marlinspikes | 
| marlinespikes | |
Note: These 21 words that start with 'marl' are found from the USA & Canada version of the tournament Scrabble word list.