| 1 | Portuguese | assédio | siege; assault |
| 2 | Vulgar Latin | absedium | siege |
| 3 | Latin | obsidium | genitive plural of obses; A siege, blockade |
| 4 | Latin | obses | a hostage; a security, pledge |
| 5 | Polish | obsesja | — |
| 6 | Latin | obsessiō | — |
| 7 | Latin | obsidere | present active infinitive of obsideō;... |
| 8 | Latin | obsideo | I sit, remain, abide, stay; I frequent, haunt,... |
| 9 | Latin | ob- | towards; against |
| 10 | Latin | obolus | obolus |
| 11 | Ancient Greek | ὀβολός | obol, obolus, used at Athens as both a weight and... |
| 12 | Ancient Greek | ὀβελός | a spit, rod; a horizontal line |
| 13 | Ancient Greek | βέλος | missile, arrow, dart; weapon; something quickly... |
| 14 | Proto-Indo-European | gʷélHos | — |
| 15 | Proto-Indo-European | gʷelH- | to throw, reach, pierce; to hit by throwing |