Where does “Spannungsfestigkeit” come from?

Spannungsfestigkeit (German) comes from German Spannung, from German -ung, from Middle High German -ung, from Old High German -unga, from Proto-Germanic -ungō — -ing, -ion. "Forms gerund nouns from verbs.".

Spannungsfestigkeit (German): dielectric strength

Definitions

  1. dielectric strength

Ancestry of “Spannungsfestigkeit”, step by step

Spannungsfestigkeit traces back through two separate lines of ancestry.

via German Spannung

StepLanguageWordMeaning
1GermanSpannungvoltage; tension; suspense
2German-ung-ing; "forms nouns from verbs, usually describing...
3Middle High German-ung
4Old High German-unga-ing
5Proto-Germanic-ungō-ing, -ion. "Forms gerund nouns from verbs."

via German Festigkeit

StepLanguageWordMeaning
1GermanFestigkeitstrength; firmness, steadiness; hardness,...
Every word from Proto-Germanic -ungōEvery word from German -ungEvery word from Old High German -unga