Where does “Mótsognir” come from?

Mótsognir (Old Norse) comes from Old Norse móðr, from Proto-Germanic mōdaz, from Proto-Indo-European mē- — to measure; endeavour, will, temper; many.

Ancestry of “Mótsognir”, step by step

Step	Language	Word	Meaning
1	Old Norse	móðr	anger, wrath; enragement, agitation
2	Proto-Germanic	mōdaz	mind, sense; zeal, boldness, courage; anger
3	Proto-Indo-European	mē-	to measure; endeavour, will, temper; many

Mótsognir — Etymology, Origin & Word History | Etymology Explorer