| Ichthyologisch | ichthyological |
| Ichthyologin | ichthyologist |
| Ichthyologie | ichthyology |
| Ichthyologe | ichthyologist |
| chronologisch | chronological chronologic |
| ethnologisch | ethnologic ethnological |
| ethologisch | etologic |
| lithologisch | lithological |
| mythologisch | mytholocigal |
| pathologisch | pathological |
| theologisch | theological theologic |
| Ichthyosis | ichthyosis |
| chthonisch | chthonic |
| diphthongisch | diphthongal diphthongized |
| bryologisch | bryological |
| embryologisch | embryological |
| aretologisch | aretological |
| astrologisch | astrological |
| autologisch | autological |
| patrologisch | patrological |