| Sachkundiger | proficient |
| sachkundig | proficient |
| Sachkunde | competence |
| fachkundig | adept |
| Schuldiger | culprit guilty person |
| Sprachenkundiger | polyglot |
| Sternkundiger | astronomer |
| Verkündiger | herald |
| abkündigen | discontinue |
| ankündigen | announce foretell portend |
| aufkündigen | denounce revoke terminate |
| schrundig | fissured |
| Schuldige | perpetrator guilty |
| Sachanlage | fixed asset |
| Achtziger | eighties |
| Sprachenkundige | polyglot |
| Wachhündin | guard dog |
| Dachbinder | rooftruss |
| Fischkundler | ichthyologist |
| Bibelkundiger | biblicist |