| 1 | Vulgar Latin | clostrum | nominative neuter singular of clōstra; accusative... |
| 2 | Latin | claustrum | a bar, band, bolt; gate, door, bulwark; enclosure |
| 3 | Latin | claudere | present active infinitive of claudō;... |
| 4 | Latin | claudo | I shut, close, lock; I imprison, confine; I... |
| 5 | Proto-Italic | klaudō | close |