| Enzyklika | encyclical |
| Angelika | Anjelica Angelique |
| Enzian | gentian |
| Enzyklopädie | encyclopedia encyclopaedia |
| Enzym | enzyme |
| Epizykloide | epicycloid |
| Rezyklat | recyclate |
| Zykloide | cycloid |
| Zyklone | cyclone |
| Zyklon | cyclone |
| Zyklop | cyclops |
| Zyklus | cycle |
| azyklisch | acyclic |
| bizyklisch | bicyclic |
| zyklisch | cyclic |
| Einzelklick | single-click |
| Nuklid | nuclide |
| Euklid | Euclid |
| Klima | climate |
| Seeklima | marine climate oceanic climate |