Where does “Primärenergie” come from?
Primärenergie (German) comes from German primär, from French primaire, from Latin prīmārius, from Latin prīmus, from Latin prīsmos, from Proto-Italic priisemos, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.
Primärenergie (German): primary energy
Ancestry of “Primärenergie”, step by step