| Siderit | siderite |
| Asiderit | asiderite |
| Abderit | Abderite |
| Desiderat | desideratum |
| Sidecar | Sidecar |
| siderisch | sidereal |
| Eider | Eider |
| Fideist | fideist |
| Neiderin | envier |
| Bidet | bidet |
| Idefix | Dogmatix |
| Widerrist | skein |
| biderb | honest honorable honourable respectable |
| wider | against |
| Lyderin | Lydian |
| Mederin | Mede |
| Senderin | sender |
| moderig | musty |
| Inderin | Indian |
| Lüderitz | Lüderitz |