There are 15 words that start with 'more'.
| more | morel | mores | 
| moreen | morels | moreens | 
| morelle | morello | morelles | 
| morellos | moreness | moreover | 
| moresque | moresques | morenesses | 
Note: These 15 words that start with 'more' are found from the USA & Canada version of the tournament Scrabble word list.