| Effekt | effect |
| Effekten | valori mobiliari |
| effektiv | effective |
| Effet | spin |
| Affekt | affect |
| Effeff | splendid |
| Defekt | defect fault deficiency |
| defekt | defective damage |
| Infekt | infection |
| Perfekt | perfect |
| perfekt | perfect |
| Effektstärke | effect size |
| Effendi | effendi |
| reffen | reef |
| Effektivität | effectiveness |
| Efflux | efflux |
| Neffe | nephew |
| effektuieren | effect make accomplish effectuate put into practice realize deliver dispatch send out |
| Buffet | buffet |
| offene | open source |