There are 10 words that start with 'encap'.
| encapsule | encapsuled | 
| encapsules | encapsulate | 
| encapsuling | encapsulated | 
| encapsulates | encapsulating | 
| encapsulation | encapsulations | 
Note: These 10 words that start with 'encap' are found from the USA & Canada version of the tournament Scrabble word list.