| Geologie | geology |
| Geologe | geologist |
| Geologin | geologist |
| Areologie | areology |
| Ideologie | ideology |
| Rheologie | rheology |
| Theologie | theology |
| -ologie | -ology |
| Aerologie | aerology |
| Oologie | oology |
| Sexologie | sexology |
| Ufologie | ufology |
| Apologie | apology apologia |
| Biologie | biology |
| Egologie | egology |
| Gemmologie | gemmology gemology |
| Mesologie | mesology |
| Myologie | myology |
| Noologie | noology |
| Otologie | otology |