There are 17 words that start with 'perit'.
| periti | peritus |
| peritonea | peritrich |
| perithecia | peritoneal |
| peritoneum | peritricha |
| peritrichs | perithecial |
| perithecium | peritoneums |
| peritonitis | peritoneally |
| peritrichous | peritonitises |
| peritrichously | |
Note: These 17 words that start with 'perit' are found from the USA & Canada version of the tournament Scrabble word list.