There are 13 words that start with 'empt'.
| empty | emptied | emptier | 
| empties | emptily | emptins | 
| emptiers | emptiest | emptings | 
| emptying | emptiable | emptiness | 
| emptinesses | ||
Note: These 13 words that start with 'empt' are found from the USA & Canada version of the tournament Scrabble word list.