| Answer | Crossword Clue |
|---|---|
| MMCDI | Roman 2,401 |
| CDI | Roman 401 |
| CDI | 401, Roman-style |
| CDI | 401, to a Roman |
| CDI | 401, in Roman times |
| MMD | Roman 2,500 |
| MMLI | Roman 2,051 |
| MMI | Roman 2,001 |
| MMII | Roman 2,002 |
| MMC | 2,100, in Roman numerals |
| congius | ancient Roman unit of liquid measure equal to about 0.8 U.S. gallon (3.2 liters) |
| congii | ancient Roman unit of liquid measure equal to about 0.8 U.S. gallon (3.2 liters) |
