Norwegian Bokmål Etymology From tru + -skap. Noun truskap m (definite singular truskapen, uncountable) alternative form of troskap References “truskap” in The Bokmål Dictionary. Norwegian Nynorsk Etymology From tru + -skap. Noun truskap m (definite singular truskapen, uncountable) allegiance, fidelity, loyalty References “truskap” in The Nynorsk Dictionary.Wikiwand - on Seamless Wikipedia browsing. On steroids.