| Spekulatius | windmill cookie |
| Spekulation | speculation |
| spekulativ | speculative |
| Spekulantin | speculator |
| Spekulant | speculator |
| Spekulum | speculum |
| Äskulapius | Asclepius |
| Spektrum | spectrum |
| spekulieren | speculate conjecture gather |
| Dekubitus | bedsore |
| Skulpteur | sculptor |
| Säkularismus | secularism |
| Säkularist | secularist |
| Ejakulation | ejaculation |
| Kalkulation | calculation costing |
| Kultus | cult |
| Makulatur | waste paper |
| Muskulatur | musculature |
| Skulptur | sculpture |
| Subkultur | subculture |