| 1 | Polish | suma | sum; union; genitive/accusative singular of sum |
| 2 | German | Saum | hem; edge; burden of a pack animal |
| 3 | Middle High German | soum | weight, pack animal; hem, seam |
| 4 | Old High German | soum | weight, pack animal; hem, seam; burden |
| 5 | Proto-West Germanic | saum | stitch, seam, hem, edge; a load, burden;... |
| 6 | Late Latin | sauma | packsaddle; burden saddle, burden |
| 7 | Latin | sagma | saddle |
| 8 | Ancient Greek | σάγμα | A covering, a clothing; the covering of a shield;... |
| 9 | Ancient Greek | σάττω | to stuff quite full, cram, pack; to press close,... |
| 10 | Proto-Indo-European | twenk- | to press, squeeze; to squeeze, press, pressure |