There are 10 words that start with 'perti'.
| pertinent | pertinence |
| pertinency | pertinacity |
| pertinences | pertinently |
| pertinacious | pertinencies |
| pertinacities | pertinaciously |
Note: These 10 words that start with 'perti' are found from the USA & Canada version of the tournament Scrabble word list.