merkedag (Norwegian Nynorsk) comes from Norwegian Nynorsk dag, from Old Norse dagr, from Proto-Germanic dagaz, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.
merkedag (Norwegian Nynorsk): a red-letter day
Definitions
a red-letter day
Ancestry of “merkedag”, step by step
merkedag traces back through two separate lines of ancestry.