| Keratokonus | keratoconus |
| Keratitis | keratitis |
| Keratin | keratin |
| Keratolyse | keratolysis |
| teratogen | teratogenic |
| Kuration | cure |
| Kuratorin | curator |
| Kuratorium | curatorship |
| Tritonus | tritone |
| Kernikterus | kernicterus |
| Keramik | pottery |
| Kerntechnik | nuclear technology |
| Kerogen | kerogen |
| Kerosin | kerosene |
| kernlos | seedless |
| Beratungs- | advisory |
| Erasmus | Erasmus |
| Herabkunft | avatar |
| Herakles | Heracles |
| Veratmung | respiration |