| Serotonin | serotonin |
| Neurotoxin | neurotoxin |
| Bretonin | Breton |
| Teutonin | Teuton |
| vertonen | set to music |
| Melatonin | melatonin |
| ertönen | ring out sound |
| Serpentin | serpentine |
| Serbin | Serb |
| Serin | serine |
| Sermon | sermon |
| Terzeronin | quadroon |
| Zerobond | zero coupon bond |
| Erotik | eroticism |
| Heroin | heroin heroine |
| Heroon | heroon |
| Kerosin | kerosene |
| Xerokopie | xerox |
| Xerostomie | xerostomia |
| eröffnen | inaugurate open open up |