| Answer | Crossword Clue |
|---|---|
| PSI | Homer's penultimate letter |
| WYE | Penultimate letter |
| PSI | Penultimate letter |
| PSI | Penultimate Greek letter |
| SHIN | Penultimate Hebrew letter |
| PSI | Plato's penultimate letter |
| PSI | Penultimate letter in Paros |
| PSI | Penultimate letter of the Greek alphabet |
| ETA | Penultimate letter in the first third of the Greek alphabet |
