Where does “Quarzglas” come from?

Quarzglas (German) comes from German Quarz, from Middle High German quarz, from German twarc, from Proto-Slavic tvьrdъ, from Proto-Balto-Slavic *twírˀtas, from Proto-Indo-European twerH- — to enclose, fence in; to grab, seize; to stir.

Quarzglas (German): quartz glass; fused silica

Definitions

  1. quartz glass; fused silica

Ancestry of “Quarzglas”, step by step

Quarzglas traces back through two separate lines of ancestry.

via German Quarz

StepLanguageWordMeaning
1GermanQuarzquartz
2Middle High Germanquarz—
3Germantwarc—
4Proto-Slavictvьrdъhard, firm, solid
5Proto-Balto-Slavic*twírˀtashard, firm, solid
6Proto-Indo-EuropeantwerH-to enclose, fence in; to grab, seize; to stir

via German glas

StepLanguageWordMeaning
1Germanglasglass
2Old High Germanglas—
3Proto-West Germanicglasglass
4Proto-Germanicglasąglass
5Proto-Indo-Europeanǵʰel-to shine, glimmer, glow; to shimmer, gleam;...
Every word from Proto-Indo-European twerH- →Every word from Proto-Balto-Slavic *twírˀtas →Every word from Proto-Slavic tvьrdъ →