There are 12 words that start with 'swart'.
| swart | swarth | 
| swarty | swarths | 
| swarthy | swarthier | 
| swarthily | swartness | 
| swarthiest | swarthiness | 
| swartnesses | swarthinesses | 
Note: These 12 words that start with 'swart' are found from the USA & Canada version of the tournament Scrabble word list.