| Part of speech | unknown part of speech |
|---|
| Nominative | arseniko |
|---|---|
| Accusative | arsenikon |
| Dutch | arsenicum; rattenkruit |
|---|---|
| English | arsenic; white arsenic |
| French | arsenic |
| German | Arsenik |
| Portuguese | arsénico; arsénico‐branco; mata‐ratos |
| Saterland Frisian | Arsenik |
| Spanish | anhídrido arsenioso; arsénico |