Where does “siæxtān” come from?

siæxtān (Old Swedish) comes from Old Norse sextán, from Proto-Germanic sehstehun, from Proto-Germanic tehun, from Proto-Indo-European déḱm̥t — ten.

Ancestry of “siæxtān”, step by step

StepLanguageWordMeaning
1Old Norsesextánsixteen
2Proto-Germanicsehstehunsixteen
3Proto-Germanictehunten
4Proto-Indo-Europeandéḱm̥tten
Every word from Proto-Indo-European déḱm̥t →Every word from Proto-Germanic tehun →Every word from Proto-Germanic sehstehun →