There are 8 words that start with 'staph'.
| staph | staphs | 
| staphylinid | staphylinids | 
| staphylococci | staphylococcal | 
| staphylococcic | staphylococcus | 
Note: These 8 words that start with 'staph' are found from the USA & Canada version of the tournament Scrabble word list.