| Systematik | systematics |
| Synsystematik | syntaxonomy |
| systematisch | systematic systematical |
| systemoid | systemoid |
| System | system structure |
| systemisch | systemic |
| systemlos | systemless unmethodical without a system |
| Nystatin | nystatin |
| Kinematik | kinematics |
| Mathematik | mathematics math |
| Phonematik | phonematics |
| Semantik | semantics |
| Suprematie | supremacy |
| Telematik | telematics teleinformatics |
| Automatik | automatism automatic automatic transmission |
| Statik | statics |
| unsystematisch | unsystematic |
| Cystein | cysteine |
| Hysterie | hysteria hysterics |
| Mystik | mysticism mystique |