Where does “Lauflänge” come from?

Lauflänge (German) comes from German Länge, from Middle High German lenge, from Old High German lengī, from Proto-West Germanic *langī, from Proto-Germanic langį̄, from Proto-Germanic -į̄, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

Lauflänge (German): the reciprocal of the linear density

Definitions

  1. the reciprocal of the linear density

Ancestry of “Lauflänge”, step by step

Lauflänge traces back through two separate lines of ancestry.

via German Länge

StepLanguageWordMeaning
1GermanLängelength; longitude
2Middle High Germanlenge—
3Old High Germanlengīlength
4Proto-West Germanic*langīlength
5Proto-Germaniclangį̄length
6Proto-Germanic-į̄-th
7Proto-Indo-European-íh₂—
8Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via German Lauf

StepLanguageWordMeaning
1GermanLaufa run; a leg of certain animals; barrel
2Middle High Germanlouf—
3Old High Germanhlouf—
4Proto-Germanichlaupąleap; course, race
5Proto-Germanichlaupanąto jump forward, to leap
6Proto-Indo-Europeanklaup-—
Every word from Proto-Indo-European -h₂ →Every word from Proto-Germanic -į̄ →Every word from Proto-Germanic langį̄ →