 |
| Subject | Welsh | Danish |
| mamm. | llygoden bengron | mosegris (Arvicola terrestris) |
| mamm. | llygoden fawr /llygoden ffrengig | rotte (Rattus (rattus, norvegicus)) |
| mamm. | llygoden fwsg | bisamrotte (Ondatra zibethicus) |
| comp., MS | prif fotwm y llygoden | primær museknap |
| comp., MS | pwyntydd y llygoden | musemarkør |