Where does “Lebenserwartung” come from?

Lebenserwartung (German) comes from German Erwartung, from German erwarten, 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.

Lebenserwartung (German): life expectancy, lifespan (of organism)

Definitions

  1. life expectancy, lifespan (of organism)

Ancestry of “Lebenserwartung”, step by step

Lebenserwartung traces back through two separate lines of ancestry.

via German Erwartung

StepLanguageWordMeaning
1GermanErwartungexpectation, expectancy
2Germanerwartento expect, to consider likely; to await, 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 lebēn

StepLanguageWordMeaning
1Germanlebēn
2Middle High Germanlebento live
3Old High Germanlebēnto live; life
4Proto-West Germaniclibbjanto live, to be alive
5Proto-Germaniclibjanąto live, to be alive
6Proto-Indo-Europeanleyp-to stick; fat or sticky substance
7Proto-Indo-Europeanlēy-to leave, let; to want, desire; to let; leave...
Every word from Proto-Indo-European údEvery word from Proto-Indo-European uds-Every word from German er-