| Rokoko | roccoco |
| Krokoit | crocoite |
| Rokh | roc |
| Marokko | Morocco |
| Taroko | Sediq Taroko Truku |
| Öko- | organic |
| öko- | eco- |
| Ökoton | ecotone |
| Kokon | cocoon |
| Kokos | coconut coco |
| Kokosöl | coconut oil |
| Schoko | choc |
| Ökonom | economist |
| Dekokt | decoction |
| Koka | coca |
| Kokke | coccus |
| Koks | coke dough bread dosh lolly loot snow blow dust nose candy bowler bowler hat hard hat balderdash nonsense rubbish |
| Krokant | brittle |
| Krökeln | foosball |
| Prokyon | Procyon |