| Dekade | decade group of ten period of ten days period of ten weeks period of ten months decennium |
| Dekaeder | decahedron |
| Dekadenz | decadence degeneracy degeneration |
| dekadent | decadent |
| Dekan | dean |
| deka- | deca- |
| Hekabe | Hecuba |
| Arkade | archway arcade |
| Zikade | cicada |
| Dryade | dryad |
| Gerade | straight line line straight |
| gerade | straight even just precisely exactly really |
| Dekanin | dean |
| Dekanter | decanter |
| Dekalog | Decalogue Ten Commandments |
| Dekkan | Deccan |
| Dekokt | decoction |
| Dekor | decor |
| Dekret | decree |
| Dekurs | decursus morbi |