Where does “Gleichheitszeichen” come from?

Gleichheitszeichen (German) comes from German Gleichheit, from German -heit, from Middle High German -heit, from Old High German -heit, from Proto-West Germanic -haidu, from Proto-Germanic haiduz, from Proto-Indo-European (s)kayt-.

Gleichheitszeichen (German): equal sign, equals sign, equality sign

Definitions

  1. equal sign, equals sign, equality sign

Ancestry of “Gleichheitszeichen”, step by step

Gleichheitszeichen traces back through two separate lines of ancestry.

via German Gleichheit

StepLanguageWordMeaning
1GermanGleichheitequality
2German-heitConverts an adjective into a noun and usually...
3Middle High German-heitness, -ity, -hood; forms nouns from adjectives, denoting the abstract quality of the adjective
4Old High German-heitnature, character
5Proto-West Germanic-haiduhood
6Proto-Germanichaiduzmanner, way; personality, character; appearance
7Proto-Indo-European(s)kayt-

via German zeichen

StepLanguageWordMeaning
1Germanzeichensign, token
2Old High Germanzeihhansign, symbol, feature; sign, symbol
3Proto-West Germanictaiknsign, token, symbol
4Proto-Germanictaiknąsign, token, symbol
5Proto-Indo-Europeandeyḱ-to point out
Every word from Proto-Indo-European (s)kayt-
Gleichheitszeichen — Etymology, Origin & Word History | Etymology Explorer