| Ökonomie | economy |
| Ökonomin | economist |
| Zökotomie | cecotomy typhlotomy |
| Ökologie | ecology |
| Ökonom | economist |
| Bionomie | bionomics |
| Ökologin | ecologist |
| Tokologie | tocology |
| Zökostomie | caecostomy cecostomy |
| Ökoenergie | green energy green power |
| Ökologe | ecologist |
| Ökonometrie | econometrics |
| Ökonym | econym |
| ökonomisch | economic economical |
| Konoid | conoid |
| Monözie | monoecy |
| Agronomie | agronomy |
| Autonomie | autonomy |
| Ergonomie | ergonomics |
| Monosomie | monosomy |