| Part of speech | adjective |
|---|---|
| Hyphenation | kupr·a |
| Singular | Plural | |
|---|---|---|
| Nominative | kupra | kupraj |
| Accusative | kupran | kuprajn |
| Dutch | koperen; roodkoperen |
|---|---|
| English | copper |
| German | ehern; kupfern; aus Kupfer; Kupfer‐; kupferfarben |
| Latin | aeneus; aerarius; aheneus; chalceus |
| Portuguese | cúprico; de cobre |
| Saterland Frisian | eeren |
| Spanish | cobreño |