There are 17 words that start with 'morta'.
| mortal | mortar | mortals |
| mortars | mortary | mortally |
| mortared | mortality | mortaring |
| mortarman | mortarmen | mortadella |
| mortarless | mortadellas | mortalities |
| mortarboard | mortarboards | |
Note: These 17 words that start with 'morta' are found from the USA & Canada version of the tournament Scrabble word list.