| Topologie | topology |
| Tropologie | tropology |
| Typologie | typology |
| Tokologie | tocology |
| Apologie | apology apologia |
| Horologie | horology |
| Oologie | oology |
| Pönologie | penology |
| Doxologie | doxology |
| Homologie | homology |
| Morologie | morology |
| Motologie | motology |
| Noologie | noology |
| Nosologie | nosology |
| Otologie | otology |
| Podologie | chiropody podiatry |
| Pomologie | pomology |
| Theologie | theology |
| Zoologie | zoology |
| Ökologie | ecology |