| 1 | Scots | stalwart | physically strong, powerful, stour; exhibiting... |
| 2 | Middle English | stal-worth | physically strong, hardy, robust; brave,... |
| 3 | Old English | stǣlwierþe | able to stand in good stead, serviceable;... |
| 4 | Old English | staþol | foundation, establishment; fixed position;... |
| 5 | Proto-Germanic | staþulaz | position, standing; support, frame, rack |
| 6 | Proto-Indo-European | *steh₂- | — |