| Callovium | Callovian |
| Alluvium | Holocene |
| Caloricum | phlogiston |
| Calcium | calcium |
| Gallium | gallium |
| Palladium | palladium |
| Kollodium | collodion |
| Kolluvium | colluvium |
| Californium | californium |
| Callgirl | call girl callgirl |
| Allonym | allonym |
| Hallraum | echo chamber |
| Wallonie | Wallonia |
| Wallonin | Walloon |
| Fallout | fall-out |
| Thallium | thallium |
| Wallonien | Wallonia |
| Kolloquium | colloquium examination symposium test |
| Kasimovium | Kasimovian |
| Moskovium | Moscovian |