| Oxygen | oxygen |
| Oxygenium | oxygen |
| Oxymel | oxymel |
| oxygenieren | oxygenate |
| oxyton | oxytone |
| Oxygenation | oxygenation |
| exogen | exogenous |
| Oxydul | monoxide |
| Oxygenierung | oxygenation |
| Adygea | Adygea |
| -gen | -gen |
| Algen | seaweed |
| Bergen | Bergen |
| bergen | salvage save recover shelter bear |
| Eggen | harrowing |
| eggen | harrow |
| Fegen | sweeping |
| fegen | sweep clean |
| Hegen | nurturance |
| hegen | cherish look after preserve have |