 |
| Subject | Welsh | Icelandic |
| comp., MS | botwm chwith llygoden | vinstri músarhnappur |
| comp., MS | botwm de llygoden | hægri músarhnappur |
| comp., MS | botwm llygoden | músarhnappur |
| comp., MS | clic llygoden | músarsmellur |
| mamm. | llygoden bengron | vatnastúfa (Arvicola terrestris) |
| mamm. | llygoden fawr /llygoden ffrengig | rotta (Rattus (rattus, norvegicus)) |
| mamm. | llygoden fwsg | bísamrotta (Ondatra zibethicus) |
| mamm. | llygoden fwsg | moskusrotta (Ondatra zibethicus) |
| comp., MS | prif fotwm y llygoden | aðalmúsarhnappur |
| comp., MS | pwyntydd y llygoden | músarbendill |