| Defraudantin | defrauder |
| Defraudant | defrauder |
| Deklarantin | declarant |
| Defäkation | defecation |
| Defätistin | defeatist |
| Pedantin | pedant |
| Gratulantin | congratulator |
| Nekromantin | necromancer |
| Querulantin | grouser |
| Deszendentin | descendant |
| Deflation | deflation |
| Defloration | defloration |
| defragmentieren | defragment |
| Befragerin | interviewer |
| Refrain | refrain |
| befreunden | amity |
| befruchten | fertilise |
| Frausein | womanhood |
| Frauenärztin | gynaecologist |
| Fränkin | Frank |