Where does “svigermor” come from?
svigermor (Norwegian Bokmål) comes from Norwegian Bokmål sviger-, from German schwieger-, from German Schwieger, from Middle High German swiger, from Old High German swigar, from Proto-West Germanic *swegru, from Proto-Germanic swegrō, from Proto-Indo-European sweḱrúh₂ — father-in-law.
svigermor (Norwegian Bokmål): mother-in-law
Ancestry of “svigermor”, step by step