| krebsig | cancerous |
| Krebs | crayfish crab cancer Cancer |
| Reisig | brushwood |
| Krebstier | crustacean |
| Kreolin | Creole |
| Kressen | pepperwort |
| Kredit | credit loan |
| Kreis | circle district |
| Kreisel | pegtop whip-top whipping-top gyroscope gyro |
| Kresse | cress |
| Kretin | cretin |
| kreativ | creative |
| krebsrot | red as a lobster |
| kreisen | circle circumgyrate |
| Trebbia | Trebbia |
| felsig | rocky |
| käsig | cheesy |
| rissig | cracky |
| rußig | fuliginous |
| stressig | stressful |