Where does “Eigenwärme” come from?
Eigenwärme (German) comes from German Wärme, from Middle High German werme, from Old High German warmī, from Old High German warm, from Proto-West Germanic warm, from Proto-Germanic warmaz, from Proto-Indo-European gʷʰer-, from Proto-Indo-European gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr.
Eigenwärme (German): body heat
Ancestry of “Eigenwärme”, step by step