There are 13 words that start with 'merit'.
| merit | merits | 
| merited | meriting | 
| meritless | meritocrat | 
| meritocracy | meritocrats | 
| meritorious | meritocratic | 
| meritocracies | meritoriously | 
| meritoriousness | |
Note: These 13 words that start with 'merit' are found from the USA & Canada version of the tournament Scrabble word list.