Where does “sommersolverv” come from?
sommersolverv (Norwegian Bokmål) comes from Norwegian Bokmål sommer, from Old Norse sumarr, from Proto-Germanic sumaraz, from Proto-Indo-European sm̥m-aro-, from Proto-Indo-European sm̥-h₂-ó-, from Proto-Indo-European semh₂- — summer, year.
sommersolverv (Norwegian Bokmål): summer solstice
Ancestry of “sommersolverv”, step by step