| defektiv | defective |
| Defektivum | defective |
| Detektiv | detective |
| Defekt | defect fault deficiency |
| defekt | defective damage |
| defensiv | defensive |
| affektiv | affective |
| effektiv | effective |
| perfektiv | perfective |
| selektiv | selective |
| direktiv | directive |
| deduktiv | deductive |
| Defensive | defensive |
| Deflektor | deflector |
| definitiv | definitive definite positively |
| deftig | hearty solid substantial coarse crude ribald steep |
| ineffektiv | feckless ineffective |
| uneffektiv | nugatory |
| Dejektion | dejecta |
| Detektivin | bloodhound |