| 1 | Middle English | arbere | Alternative form of herber |
| 2 | Middle English | herber | pleasure garden; herb garden; vegetable garden |
| 3 | Old English | herebeorg | shelter, refuge; military quarters |
| 4 | Proto-West Germanic | harjabergu | army camp, barracks; refuge, shelter |
| 5 | Proto-West Germanic | hari | army |
| 6 | Proto-Germanic | harjaz | army; army leader; commander; warrior |
| 7 | Proto-Indo-European | kóryos | war; troops; army; war, troops |
| 8 | Proto-Indo-European | ḱer- | to grow, to make grow, to nourish; to plait,... |
| 9 | Proto-Indo-European | kr̥- | to turn, to bend |
| 10 | Proto-Indo-European | ker- | army |