There are 11 words that start with 'swagg'.
| swagged | swagger | swaggie | 
| swaggers | swaggies | swagging | 
| swaggered | swaggerer | swaggerers | 
| swaggering | swaggeringly | |
Note: These 11 words that start with 'swagg' are found from the USA & Canada version of the tournament Scrabble word list.