| Esperanto | Deutsch | |
| ruzeco | Raffinesse | ✘ |
| rafinejo | Raffinerie | ✘ |
| rafineco | Raffinesse | ✘ |
| rafinado | Raffinerie — Verfahren | ✘ |
| afina spaco | affiner Raum | ✘ |
| afina ebeno | affine Ebene | ✘ |
| naftorafinejo | Erdölraffinerie | ✘ |
| afina rekto | affine Gerade | ✘ |
| sukerrafinejo | Zuckerraffinerie | ✘ |
| afina geometrio | affine Geometrie | ✘ |
| afina hiperebeno | affine Hyperebene | ✘ |
| afina subspaco | affine Manigfaltigkeit | ✘ |