There are 15 words that start with 'prolif'.
| prolific | proliferate |
| prolificacy | prolificity |
| proliferated | proliferates |
| prolifically | prolificness |
| proliferating | proliferation |
| proliferative | prolificacies |
| prolificities | proliferations |
| prolificnesses | |
Note: These 15 words that start with 'prolif' are found from the USA & Canada version of the tournament Scrabble word list.