| Lustrum | lustrum five-year period quinquennium |
| Claustrum | claustrum |
| Utrum | common gender |
| Lusern | Luserna |
| lustlos | exanimate drowsy |
| Luser | luser |
| Lust | inclination joy lust desire lechery |
| Lüster | chandelier |
| lustig | funny jocular gay merry happy |
| lüstern | lascivious |
| Justus | Justus |
| Austrag | retirement |
| Austral | southern |
| austral | austral |
| Blutstrom | bloodstream |
| Struma | goitre |
| Kolostrum | colostrum beestings foremilk |
| Monstrum | monster |
| Strom | current torrent stream |
| abstrus | abstruse |