There are 14 words that start with 'pertu'.
| perturb | perturbs |
| perturbed | perturber |
| pertussal | pertusses |
| pertussis | perturbers |
| perturbing | perturbable |
| pertussises | perturbation |
| perturbations | perturbational |
Note: These 14 words that start with 'pertu' are found from the USA & Canada version of the tournament Scrabble word list.