There are 14 words that start with 'merr'.
| merry | merrier |
| merrily | merriest |
| merriment | merriness |
| merriments | merrymaker |
| merrinesses | merrymakers |
| merrymaking | merrymakings |
| merrythought | merrythoughts |
Note: These 14 words that start with 'merr' are found from the USA & Canada version of the tournament Scrabble word list.