| Ekossaise | écossaise |
| Grossaffe | great ape |
| Großaffe | great ape |
| enossal | intraosseous |
| Grossist | wholesaler |
| Essayist | essayist |
| Essai | essay |
| Necessaire | wash bag |
| Kokosfaser | coir |
| Kokoswasser | coconut water |
| Kosekans | cosecant |
| Ikosaeder | icosahedron |
| Kokospalme | coconut coco palm |
| Kosak | Cossack |
| Kosename | pet name term of endearment |
| Kosinus | cosine |
| Kosmos | cosmos |
| Kosovare | Kosovan |
| Kosrae | Kosrae Kusaie |
| Mukositis | mucositis |