Where does “Ergänzungsbindestrich” come from?

Ergänzungsbindestrich (German) comes from German Ergänzung, from German ergänzen, from German er-, from Middle High German er-, from Old High German ir-, from Proto-West Germanic uʀ-, from Proto-Germanic uz-, from Proto-Indo-European uss- — out, outward.

Ancestry of “Ergänzungsbindestrich”, step by step

Ergänzungsbindestrich traces back through two separate lines of ancestry.

via German Ergänzung

StepLanguageWordMeaning
1GermanErgänzungsupplement, addition, complement,...
2Germanergänzento fill, fill out, complete; to complement, to...
3Germaner-Inseparable verbal prefix that indicates a...
4Middle High Germaner-
5Old High Germanir-thoroughly
6Proto-West Germanicuʀ-out, over; off, away
7Proto-Germanicuz-up, out
8Proto-Indo-Europeanuss-
9Proto-Indo-Europeanuds-up, out
10Proto-Indo-Europeanúdout, outward

via German Bindestrich

StepLanguageWordMeaning
1GermanBindestrichhyphen
2Germanstrichfirst/third-person singular preterite of...
3Middle High Germanstrich
4Old High Germanstrih
5Proto-West Germanic*strikiline
6Proto-Germanicstrikizline
7Proto-Indo-Europeanstreyg-to strike; to shear
8Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...
Every word from Proto-Indo-European údEvery word from Proto-Indo-European uds-Every word from German er-