Where does “Drehgeschwindigkeit” come from?

Drehgeschwindigkeit (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.

Drehgeschwindigkeit (German): angular velocity

Definitions

  1. angular velocity

Ancestry of “Drehgeschwindigkeit”, step by step

Drehgeschwindigkeit 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 drehen

StepLanguageWordMeaning
1Germandrehento turn, revolve, rotate, roll; to shoot; to veer
2Middle High Germandræjen—
3Old High Germandrāento turn; to twist; turn
4Proto-West Germanicþrāanto twist
5Proto-Germanicþrēanąto twist, to turn
6Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce
Every word from Proto-Indo-European yeh₁r- →