| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | dukino | dukinoj |
| Accusative | dukinon | dukinojn |
| Afrikaans | hertogin |
|---|---|
| Catalan | duquessa |
| Dutch | hertogin |
| English | duchess |
| German | Herzogin |
| Italian | duchessa |
| Portuguese | duquesa |
| Spanish | duquesa |
| Swedish | hertiginna |
| Turkish | düşes |
| Welsh | duges |
| West Frisian | hartoginne |