| Territorium | territory |
| territorial | territorial |
| Terrarium | terrarium |
| Dormitorium | dormitory dorter dortour |
| Triforium | triforium |
| Kriterium | criterion |
| Nordterritorium | Northern Territory |
| Terrorist | terrorist |
| exterritorial | exterritorial |
| Peritoneum | peritoneum |
| Tritium | tritium |
| Titonium | Tithonian |
| Abditorium | abditory |
| Auditorium | auditory auditorium |
| Vomitorium | vomitorium |
| Direktorium | board of directors |
| Oratorium | oratory |
| Purgatorium | Purgatory |
| Refektorium | refectory |
| Skriptorium | scriptorium |