| A | B |
| Extra | Beyond |
| Segregate | To separate from the main group |
| Extracurriculuar | Outside the regulary classes or curriculum |
| Hemi | Half |
| Hemisphere | The halves of the globe of which the Earth is divided |
| Hemimorphic | Lacking a center of symmetry |
| Hyper | Excessive |
| Hyperextend | To extend a joint beyond its normal range |
| Hyperthermia | An abnormally high fever |
| Gen | Producing |
| Genesis | The creation of something |
| Progeny | The offspring of any person, animal, or plant |
| Geo | Earth |
| Geology | The study of the physical history of Earth's surface |
| Geography | The study of the differentiation in the Earth's surface |
| Greg | Group |
| Congregate | To meet together as a group |
| Extraordinary | beyond what is usual; exceptional |