| okklusal | occlusal |
| Okklusion | occlusion |
| kausal | causal |
| Okkult | occult |
| okkult | occult |
| Okkupant | occupant |
| Kokkus | coccus |
| Inkluse | fossil inclusion resin |
| Zyklus | cycle |
| exklusiv | exclusive |
| Obolus | obol |
| Scheusal | monster beast |
| monokausal | monocausal |
| kolossal | colossal huge |
| Gokkun | gokkun |
| Kokkai | diet |
| Mokka- | mocha |
| Mokka | Turkish coffee |
| Okkultist | occultist |
| ekklesio- | ecclesio- |