| katastrophal | disastrous |
| Katastrophe | catastrophe calamity disaster |
| Katastrophen- | catastrophic |
| Eukatastrophe | eucatastrophe |
| Anastrophe | anastrophe |
| Katastrophenalarm | red alert |
| Katastrophenfilm | disaster movie |
| Apostroph | apostrophe |
| Jagdtrophäe | trophy |
| kantharophil | cantharophilic |
| Katasteramt | cadastre |
| Kathstrauch | khat |
| Flutkatastrophe | flood disaster |
| Katamaran | catamaran |
| Kataphora | cataphora |
| Katarrh | catarrh |
| Kataster | land register cadastre |
| Katatonie | catatonia |
| katathym | katathym |
| Natascha | Natasha |