| Toxikum | toxic |
| Toxin | toxin |
| toxisch | poisonous toxic |
| Azoikum | Archaean Archean Azoic |
| Unikum | original |
| Lokum | Turkish delight |
| Talkum | French chalk |
| Borkum | Borkum |
| Toxämie | toxaemia toxemia |
| atoxisch | atoxic |
| Oxid | oxide |
| Dixiklo | portable toilet |
| Lexik | vocabulary lexis |
| Lexikon | encyclopedia lexicon |
| Mexiko | Mexico Mexico City |
| Epikur | Epicurus |
| Nikud | nikud |
| Baltikum | Baltic states Baltic countries |
| Emetikum | emetic |
| Hadaikum | Hadean |