Where does “Reaktionsgeschwindigkeit” come from?

Reaktionsgeschwindigkeit (German) comes from German Reaktion, from Latin reactio, from Latin reago, from Latin rĕ-, from Latin prōdūcō, from Latin prō-, from Proto-Italic *pro-, from Proto-Indo-European pro- — passed , crossed.

Reaktionsgeschwindigkeit (German): rate of reaction

Definitions

  1. rate of reaction

Ancestry of “Reaktionsgeschwindigkeit”, step by step

Reaktionsgeschwindigkeit traces back through two separate lines of ancestry.

via German Reaktion

StepLanguageWordMeaning
1GermanReaktionresponse; reaction
2Latinreactioreaction
3LatinreagoI act upon again, I do again; I react
4Latinrĕ-back, backwards
5Latinprōdūcōto lead or bring forth, forward or out
6Latinprō-forward direction, forward movement
7Proto-Italic*pro-pro- see the Latin entry for further meanings
8Proto-Indo-Europeanpro-toward, forward
9Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
10Proto-Indo-Europeanper-before, in front; first; to go through
11Proto-Indo-Europeanpr̥tóspassed , crossed

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
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin rĕ-