There are 19 words that start with 'swam'.
| swam | swami | swamp | 
| swamy | swamis | swamps | 
| swampy | swamies | swamped | 
| swamper | swampers | swampier | 
| swamping | swampish | swampiest | 
| swampland | swampiness | swamplands | 
| swampinesses | ||
Note: These 19 words that start with 'swam' are found from the USA & Canada version of the tournament Scrabble word list.