| Katheter | catheter |
| Katheder | lectern |
| Kathete | cathetus |
| Kataster | land register cadastre |
| Katharer | Cathar |
| Athener | Athenian |
| Kathole | papist |
| Katzentür | cat flap |
| Katarer | Qatari |
| Kater | tomcat cat tom hangover |
| Kathode | cathode |
| Athene | Athena |
| Mathetik | mathetics |
| Äther | ether aether |
| Theater | theatre theater ruckus |
| Kachetien | Kakheti |
| Hethiter | Hittite Hittites |
| Machete | machete |
| Machmeter | Machmeter |
| Masseter | masseter |