There are 17 words that start with 'impet'.
| impetus | impetigo |
| impetigos | impetrate |
| impetuous | impetuses |
| impetrated | impetrates |
| impetrating | impetration |
| impetuosity | impetuously |
| impetiginous | impetrations |
| impetuosities | impetuousness |
| impetuousnesses | |
Note: These 17 words that start with 'impet' are found from the USA & Canada version of the tournament Scrabble word list.