There are 14 13-letter words that start with 'pros'.
| proscriptions | prosecutorial |
| proselytising | proselytizers |
| proselytizing | prosencephala |
| prosopography | prosopopoeias |
| prospectively | prostacyclins |
| prostaglandin | prostatectomy |
| prostatitises | prostitutions |
Note: These 14 13-letter words that start with 'pros' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with prost, prose, proso, prosp, prosc, prosa, prosi, pross, prosy.
5-letter words start with 'pros' (5)