| Kortison | cortisone |
| Cortison | cortisone |
| Cortisol | cortisol |
| Portion | portion |
| Korsin | Corsican |
| kornisch | Cornish |
| Kornisch | Cornish |
| korsisch | Corsican |
| Korsisch | Corsican Corsu |
| Kordon | cordon |
| Korfiot | Corfiot |
| Korridor | corridor |
| Korrosion | corrosion |
| Korso | parade |
| Skorpion | scorpion Scorpio |
| kortikal | cortical |
| aortisch | aortic |
| Kurtisane | courtesan courtezan mistress |
| Partisan | partisan |
| Koptisch | Coptic |
| koptisch | Coptic |