Where does “trúarlegur” come from?

trúarlegur (Icelandic) comes from Icelandic trú, from Old Norse trú, from Middle Low German truwe, from Old Saxon treuwa, from Proto-Germanic trewwō, from Proto-Indo-European drewo-.

trúarlegur (Icelandic): religious

Definitions

religious

Ancestry of “trúarlegur”, step by step

Step	Language	Word	Meaning
1	Icelandic	trú	faith
2	Old Norse	trú	faith; inflection of trúr: ## positive degree...
3	Middle Low German	truwe	—
4	Old Saxon	treuwa	—
5	Proto-Germanic	trewwō	fidelity, pledge
6	Proto-Indo-European	drewo-	—

Every word from Proto-Indo-European drewo- →Every word from Proto-Germanic trewwō →Every word from Old Saxon treuwa →