| Regolith | regolith |
| Xenolith | xenolith |
| Megalith | megalith |
| Regalien | regalia |
| Goliath | Goliath |
| Aerolith | aerolite |
| Datolith | datolite |
| Oolith | oolite |
| Otolith | otolith |
| Sepiolith | sepiolite |
| Tremolit | tremolite |
| Arsenolith | arsenolite |
| Biolith | biolith |
| Monolith | monolith |
| Zoolith | zoolite |
| Regeln | control |
| regeln | control manage regulate |
| Regiolekt | regiolect |
| Regulus | Regulus |
| regellos | licentious |