| Spekulant | speculator |
| Spekulantin | speculator |
| Spekulum | speculum |
| spekulativ | speculative |
| Sekundant | second |
| sukkulent | succulent |
| kulant | accommodating obliging |
| Querulant | grouser |
| Simulant | malingerer |
| Spektral- | spectral |
| spektral | spectral |
| Speigat | scupper |
| Speigatt | scupper |
| Spekulation | speculation |
| Spekulatius | windmill cookie |
| Sperling | sparrow |
| Assekuranz | assurance insurance |
| Sukkulente | succulent |
| fäkulent | feculent |
| Ejakulat | ejaculate |