| MOSSMATRONS | Older women of the Moss Aelf. |
| MOSSMEN | Men of the Moss Aelf. |
| MOUNTAIN OF FIRE | A gate to Muspel. |
| MOUNTAINS OF THE MICE | Same as the Mountains of the North. |
| MOUNTAINS OF THE NORTH | The mountains between Celidon and Jotunland. |
| MOUNTAINS OF THE SUN | The mountains between Celidon and Osterland. |
| MUSPEL | The sixth world, under Aelfrice. |
| MYTHGARTHR | The fourth world, where Celidon is. |
| NEEDAM | An island south of Celidon. I have never been there. |
| NJORS | A sailor on the Western Trader. |
| NUKARA | Uns’ mother. |