| Markasit | marcasite |
| Parasit | parasite |
| Margarita | margarita |
| Martensit | martensite |
| Markise | awning marquise cut marquise cut stone |
| Markt | market |
| Markus | Mark Marlin Marlon |
| Marxist | Marxist |
| markig | pithy terse |
| Barkasse | launch |
| Magnesit | magnesite |
| Marker | highlighter |
| Markhirn | afterbrain |
| Markt- | market |
| Marktweib | slut |
| Marosch | Mureș |
| Mars- | Martian |
| Marsoid | areoid |
| Marta | Martha |
| Marx'sch | Marxian |