Where does “þunwuz” come from?

þunwuz (Proto-Germanic) comes from Proto-Indo-European tn̥h₂wús, from Proto-Indo-European ténh₂us, from Proto-Indo-European tenh₂-, from Proto-Indo-European ten- — to stretch, to extend.

Ancestry of “þunwuz”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeantn̥h₂wús—
2Proto-Indo-Europeanténh₂usthin
3Proto-Indo-Europeantenh₂-to stretch, to extend
4Proto-Indo-Europeanten-to stretch, to extend
Every word from Proto-Indo-European ten- →Every word from Proto-Indo-European tenh₂- →Every word from Proto-Indo-European ténh₂us →