Middle English word rodder comes from Proto-Germanic *-þrą (Forms nouns denoting a tool or instrument.), Proto-Germanic *-þraz, Proto-Indo-European *h₁reh₁-, Proto-Germanic - þrą, Proto-Indo-European *ḱerh₂-
| Dictionary entry | Language | Definition |
|---|---|---|
| *-þrą | Proto-Germanic (gem-pro) | Forms nouns denoting a tool or instrument. |
| *-þraz | Proto-Germanic (gem-pro) | |
| *h₁reh₁- | Proto-Indo-European (ine-pro) | |
| - þrą | Proto-Germanic (gem-pro) | |
| *ḱerh₂- | Proto-Indo-European (ine-pro) | |
| *hrunþaz | Proto-Germanic (gem-pro) | A horned beast, as in a neat or ox. |
| hriþer | Old English (ang) | Cattle. |
| hrȳþer | Old English (ang) | |
| hrūþ | Old English (ang) | |
| *rōaną | Proto-Germanic (gem-pro) | To row. |
| *rōþrą | Proto-Germanic (gem-pro) | Oar. Rudder. |
| roþor | Old English (ang) | Oar. Rudder, scull. |
| rōþor | Old English (ang) | |
| ruder | Middle English (enm) |