There are 18 words that start with 'murr'.
| murr | murra | murre | 
| murrs | murry | murras | 
| murres | murrey | murrha | 
| murrain | murreys | murrhas | 
| murries | murrine | murrains | 
| murrelet | murrhine | murrelets | 
Note: These 18 words that start with 'murr' are found from the USA & Canada version of the tournament Scrabble word list.