Where does “Einsatzregel” come from?

Einsatzregel (German) comes from German rēgel, from Middle High German regel, from Old High German regula, from Latin rēgula, from Latin -ula, from Proto-Indo-European -tlom, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

Einsatzregel (German): rule of engagement

Definitions

  1. rule of engagement

Ancestry of “Einsatzregel”, step by step

Einsatzregel traces back through two separate lines of ancestry.

via German rēgel

StepLanguageWordMeaning
1Germanrēgelrule
2Middle High Germanregel
3Old High Germanregula
4Latinrēgularule, bar
5Latin-ularegō + API → rēgula; tegō + API → tēgula;...
6Proto-Indo-European-tlomAlternative form of *-trom
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via German Einsatz

StepLanguageWordMeaning
1GermanEinsatzuse; effort; risk
2Middle High Germaninsaz
Every word from Proto-Indo-European -tḗr