| Bathonium | Bathonian |
| Bartonium | Bartonian |
| Thorium | thorium |
| Euphonium | euphonium |
| Nihonium | nihonium |
| Aeronium | Aeronian |
| Santonium | Santonian |
| Titonium | Tithonian |
| Ammonium | ammonium |
| Harmonium | harmonium reed organ |
| Ruthenium | ruthenium |
| Bajocium | Bajocian |
| Bathos | bathos |
| Katholin | papist |
| Katholik | Catholic |
| Mahonie | Oregon grape |
| Aphonie | aphonia |
| Antonius | Antonius |
| Ausonius | Ausonius |
| Baronie | barony |