| Oxymoron | oxymoron |
| Oxytonon | oxytone |
| oxyton | oxytone |
| Oxytocin | oxytocin |
| Oxydation | oxidation |
| Oxygen | oxygen |
| Oxymel | oxymel |
| Oxytonum | oxytone |
| Azymon | matzah |
| Etymon | etymon |
| polymorph | polymorphous |
| Morion | morion |
| Mormon | Mormon |
| marmorn | marbled |
| Komoren | Comoros |
| Kormoran | cormorant Great Cormorant |
| moros | morose sullen |
| rumoren | make a noise rumble |
| schmoren | braise overheat |
| Kryotron | cryotron |