Where does “Untersterblichkeit” come from?

Untersterblichkeit (German) comes from German Sterblichkeit, from German -keit, 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-.

Untersterblichkeit (German): mortality deficit in comparison to a reference period or reference group

Definitions

  1. mortality deficit in comparison to a reference period or reference group

Ancestry of “Untersterblichkeit”, step by step

Untersterblichkeit traces back through two separate lines of ancestry.

via German Sterblichkeit

StepLanguageWordMeaning
1GermanSterblichkeitmortality
2German-keitAlternative form of -heit; -ness, -ty; -ty
3German-heitConverts an adjective into a noun and usually...
4Middle High German-heitness, -ity, -hood; forms nouns from adjectives, denoting the abstract quality of the adjective
5Old High German-heitnature, character
6Proto-West Germanic-haiduhood
7Proto-Germanichaiduzmanner, way; personality, character; appearance
8Proto-Indo-European(s)kayt-

via German Unter

StepLanguageWordMeaning
1GermanUnterjack, knave
2Middle High Germanunder
3Old High Germanuntarunder
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside
Every word from Proto-Indo-European (s)kayt-