| Pedologie | pedology |
| Podologie | chiropody podiatry |
| Pädologie | pedology |
| Indologie | Indology |
| Podologe | podiatrist |
| Podologin | podiatrist |
| Ludologie | ludology |
| Petrologie | petrology |
| Pönologie | penology |
| Sexologie | sexology |
| Egologie | egology |
| Geologie | geology |
| Mesologie | mesology |
| Pomologie | pomology |
| Senologie | senology |
| Pseudologe | pseudologue |
| Cecidologie | cecidology |
| Kurdologie | Kurdology |
| Pteridologie | pteridology |
| -ologie | -ology |