| Hydrocortison | hydrocortisone |
| Hydrokortison | hydrocortisone |
| Hydrochinon | hydroquinone |
| Hydrologin | hydrologist |
| Hydrochorie | hydrochory |
| Hydroforming | hydroforming |
| Hydroxidion | hydroxide |
| hydroponisch | hydroponic hydroponically soilless |
| hydrostatisch | hydrostatic |
| Cortison | cortisone |
| Proportion | proportion |
| Hydrochemie | hydrochemistry |
| Hydroenergie | hydropower |
| hydroelektrisch | hydroelectric |
| Hydrologie | hydrology |
| Erdrotation | earth's rotation |
| Cortisol | cortisol |
| Disproportion | disproportion |
| Kortison | cortisone |
| herodotisch | Herodotean |