Where does “Tonnengewölbe” come from?

Tonnengewölbe (German) comes from German Tonne, from Middle High German tunne, from Old High German tunna, from Latin tunna, from Proto-Celtic tondā, from Proto-Indo-European tend-, from Proto-Indo-European temh₂- — to stretch, string; to cut.

Tonnengewölbe (German): barrel vault

Definitions

  1. barrel vault

Ancestry of “Tonnengewölbe”, step by step

Tonnengewölbe traces back through two separate lines of ancestry.

via German Tonne

StepLanguageWordMeaning
1GermanTonnebarrel, vat, tun, drum; tonne, ton, metric ton;...
2Middle High Germantunne
3Old High Germantunna
4Latintunnatun, box
5Proto-Celtictondāskin; surface, skin
6Proto-Indo-Europeantend-to stretch, to extend; to split, cut off
7Proto-Indo-Europeantemh₂-to stretch, string; to cut

via German Gewölbe

StepLanguageWordMeaning
1GermanGewölbevault
2Middle High Germangewelbe
3Proto-Germanichwalbąvault, arch
4Proto-Indo-Europeankʷelp-to bend; to curve, arch
5Proto-Indo-Europeankʷel-to turn
Every word from Proto-Indo-European temh₂-Every word from Proto-Indo-European tend-Every word from Proto-Celtic tondā