| Regulus | Regulus |
| reglos | motionless |
| regulär | regular |
| Romulus | Romulus |
| Regeln | control |
| regeln | control manage regulate |
| regellos | licentious |
| Regal | shelf rack seigniorage regal |
| Regel | rule regulation period |
| Regelung | closed-loop control regulation arrangement |
| Regler | controller |
| Regress | regress |
| Regung | emotion |
| Regur | regur |
| Negus | negus |
| Cumulus | cumulus |
| Paulus | Paul |
| Saulus | Saul |
| Zulus | Zulu |
| Tubulus | tubule |