There are 9 words that start with 'splene'.
| splenetic | splenetics | 
| splenectomy | splenectomies | 
| splenectomize | splenetically | 
| splenectomized | splenectomizes | 
| splenectomizing | |
Note: These 9 words that start with 'splene' are found from the USA & Canada version of the tournament Scrabble word list.