Where does “Sekundengeschwindigkeit” come from?

Sekundengeschwindigkeit (German) comes from German Geschwindigkeit, from German -igkeit, from German -ig, from German -jährig, from German Jahr, from Middle High German jār, from Old High German jār, from Proto-West Germanic jār — year.

Sekundengeschwindigkeit (German): velocity per second

Definitions

  1. velocity per second

Ancestry of “Sekundengeschwindigkeit”, step by step

Sekundengeschwindigkeit traces back through two separate lines of ancestry.

via German Geschwindigkeit

StepLanguageWordMeaning
1GermanGeschwindigkeitspeed, pace, tempo, velocity, rate
2German-igkeitforms nouns from adjectives
3German-ig-y; forms adjectives from nouns; forms adjectives...
4German-jährigyears old; years lasting
5GermanJahryear
6Middle High Germanjāryear
7Old High Germanjāryear
8Proto-West Germanicjāryear
9Proto-Germanicjērąyear; name of the J-rune
10Proto-Indo-Europeanyeh₁r-year

via German Sekunde

StepLanguageWordMeaning
1GermanSekundeA unit of time; a second; A unit of angular...
2Latinsecundainflection of secundus: ## feminine...
3Latinsecundussecond, the ordinal number after prīmus and...
4LatinsequorI follow, come or go after
5Proto-Italicsekʷōrfollow, come/go after
6Proto-Indo-Europeansékʷetorto be following
7Proto-Indo-Europeansekʷ-to follow; to see; to say
Every word from Proto-Indo-European yeh₁r-