| Kasuistik | casuistry |
| Kaustik | caustic |
| kasuistisch | casuistic |
| Keltistik | Celtic studies |
| Matristik | matristics |
| Rassistin | racialist |
| Russistik | Russian studies |
| Ballistik | ballistics |
| Bassistin | bassist |
| Patristik | patristics |
| Rabulistik | pettifogging |
| Akustik | acoustics |
| kaspisch | Caspian |
| Kasimir | Casimir |
| Kasus | case occurrence incident |
| Lasurstein | lapis lazuli |
| Linguistik | linguistics |
| Autistin | autist |
| Baptistin | Baptist |
| Futuristik | futurology |