There are 10 words that start with 'psil'.
| psilocin | psiloses | psilosis |
| psilotic | psilocins | psilocybin |
| psilophyte | psilocybins | psilophytes |
| psilophytic | ||
Note: These 10 words that start with 'psil' are found from the USA & Canada version of the tournament Scrabble word list.