Where does “thun” come from?

thun (Old Danish) comes from Old Norse þunnr, from Proto-Germanic þunnuz, from Proto-Indo-European ténh₂us, from Proto-Indo-European tenh₂-, from Proto-Indo-European ten- — to stretch, to extend.

Ancestry of “thun”, step by step

StepLanguageWordMeaning
1Old Norseþunnrthin
2Proto-Germanicþunnuzthin
3Proto-Indo-Europeanténh₂usthin
4Proto-Indo-Europeantenh₂-to stretch, to extend
5Proto-Indo-Europeanten-to stretch, to extend

Words derived from “thun”

Every word from Proto-Indo-European ten- →Every word from Proto-Indo-European tenh₂- →Every word from Proto-Indo-European ténh₂us →