There are 9 words that start with 'epigen'.
| epigene | epigenic | 
| epigenist | epigenous | 
| epigeneses | epigenesis | 
| epigenetic | epigenists | 
| epigenetically | |
Note: These 9 words that start with 'epigen' are found from the USA & Canada version of the tournament Scrabble word list.