| Katharsis | catharsis |
| Katharerin | Cathar |
| kathartisch | cathartic |
| Katharer | Cathar |
| Katharina | Katherine Catharine Catherin Cathryn Katharine Katharyn |
| Mathesis | mathesis |
| Kantharos | kantharos |
| Aphäresis | apheresis |
| Katarerin | Qatari |
| Katarr | catarrh |
| Kathareuusa | Katharevousa |
| Katharevusa | Katharevousa |
| Katholin | papist |
| Katar | Qatar |
| Katarakt | cataract |
| Katarer | Qatari |
| Katarrh | catarrh |
| Katholik | Catholic |
| katarisch | Qatari |
| Athanasius | Athanasius |