Where does “sundag” come from?
sundag (Norwegian Nynorsk) comes from Old Norse sunnudagr, from Old Saxon sunnundag, from Proto-Germanic *Sunnōn dag, from Latin dies Solis, from Latin sōl, from Proto-Indo-European sóh₂wl̥ — sun.
sundag (Norwegian Nynorsk): Sunday
Ancestry of “sundag”, step by step