There are 13 12-letter words that end with 'ssed'.
| crisscrossed | decompressed | dispossessed | 
| misaddressed | fiberglassed | intercrossed | 
| nondepressed | overfocussed | overstressed | 
| prepossessed | preprocessed | retrogressed | 
| transgressed | ||
Note: These 13 12-letter words that end with 'ssed' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with essed, assed, ussed, ossed, issed.
6-letter words end with 'ssed' (24)