| Hyperbaton | hyperbaton |
| Hyperon | hyperon |
| Hypergamie | hypergamy |
| Hyperraum | hyperspace |
| Hyperbel | hyperbola |
| Hypertonie | hypertension |
| Hypertumor | hypertumor |
| hyperaktiv | hyperactive |
| Imperator | emperor |
| Superatom | superatom |
| Operation | surgery operation |
| Operator | operator administrator |
| Pergamon | Pergamum |
| spermato- | spermato- |
| herbsten | harvest |
| Heteroatom | heteroatom |
| Hyperkeratose | hyperkeratosis |
| Hypermedia | hypermedia |
| Hypernova | hypernova |
| Hypertension | hypertension |