| Mastodynie | mastodynia |
| Mastodon | mastodon |
| Misogynie | misogyny |
| Masonit | masonite |
| Mastochse | steer |
| Asthenie | asthenia |
| Gastornis | Gastornis |
| Kastanie | chestnut tree chestnut |
| Myasthenie | myasthenia |
| Kustodie | custody |
| Vulvodynie | vulvodynia |
| Mahonie | Oregon grape |
| Atonie | atony atonicity flaccidity lack of tension lack of tone relaxation |
| Myatonie | myatonia |
| Myotonie | myotonia |
| Maskotte | mascot |
| Masowien | Masovia |
| Mastdarm | rectum |
| Mastektomie | mastectomy |
| Mastering | audio mastering |