| Hirnantium | Hirnantian |
| Tarantium | Tarantian |
| Hirnstamm | brain stem |
| Strontium | strontium |
| Hettangium | Hettangian |
| Hymnarium | hymnal |
| Cranium | cranium |
| Francium | francium |
| Germanium | germanium |
| Harmonium | harmonium reed organ |
| Herbarium | herbarium |
| Kranium | skull cranium |
| Zirkonium | zirconium |
| Hirnnerv | cranial nerve |
| Hirtin | herder |
| Chiromantie | chiromancy palmistry |
| Hirnbatzl | flick |
| Hirnhaut | meninx |
| Hirntod | brain death cerebral death death of brain |
| Hirntumor | brain tumor |