There are 16 words that start with 'prola'.
| prolan | prolans | prolate |
| prolabor | prolamin | prolapse |
| prolactin | prolamine | prolamins |
| prolapsed | prolapses | prolapsus |
| prolately | prolactins | prolamines |
| prolapsing | ||
Note: These 16 words that start with 'prola' are found from the USA & Canada version of the tournament Scrabble word list.