| spektral | spectral |
| Spektral- | spectral |
| Spektralfarbe | prismatic colour spectral colour |
| Spektrallinie | spectral line |
| Spektrum | spectrum |
| pektoral | pectoral |
| sektoral | sectoral sectorial |
| Spektralfarben | prismatic colors |
| Spektralklasse | spectral class |
| aspektuell | aspectual |
| Spektakel | spectacle racket row rumpus |
| spezial | special |
| rektal | rectal |
| Petra | Peta Petra Petrina |
| dextral | dextral |
| neutral | neutral neuter |
| ventral | ventral |
| zentral | central |
| peroral | peroral |
| sakral | sacred sacral |