| -kerken | -church -kirk |
| Kerker | dungeon |
| merken | notice realize remember keep in mind memorize |
| Korken | plug stopper |
| Kerbe | jag nick |
| Kerne | churn |
| ankerben | notch |
| Erker | bay oriel |
| Kerbel | chervil |
| Kern | nucleus core kernel |
| Kernel | kernel |
| Kerogen | kerogen |
| Kerve | birthmouth |
| Kerze | candle candlestick spark plug |
| Merkel | Merkel |
| Ferkel | piglet |
| Werkel | hurdy-gurdy street organ |
| anmerken | to notice note follow |
| bemerken | notice realize recognize comment |
| ferkeln | pig |