| 1 | English | armorial | Of, or relating to heraldry, or to heraldic arms;... |
| 2 | English | armor | A protective layer over a body, vehicle, or other... |
| 3 | Middle English | armure | weaponry, the tools of warfare; armour,... |
| 4 | Anglo-Norman | armure | armor |
| 5 | Latin | armatura | armor, equipment of soldiers |
| 6 | Latin | armō | — |
| 7 | Latin | arma | defensive arms, armor/armour, shields, weapons of... |
| 8 | Late Latin | armistitium | — |
| 9 | Latin | sistere | second-person singular future passive indicative... |
| 10 | Proto-Indo-European | stísteh₂ti | to be standing up, to be getting up |
| 11 | Proto-Indo-European | steh₂- | to stand |