| Ossuarium | ossuary |
| Ossarium | ossuary |
| Aquarium | aquarium tank |
| Ovarium | ovary |
| Rosarium | rosary |
| Samarium | samarium |
| Solarium | sunbed tanning bed |
| ossär | bony osseous |
| Josuabaum | Joshua tree |
| Aktuarius | actuary |
| Abcdarium | ABC |
| Hymnarium | hymnal |
| Sakmarium | Sakmarian |
| Vivarium | vivarium |
| -arium | -arium |
| Apiarium | apiary beeyard |
| Aviarium | aviary |
| Barium | barium |
| Bestiarium | bestiary |
| Herbarium | herbarium |