Where does “zomers” come from?
zomers (Dutch) comes from Middle Dutch somersch, from Middle Dutch sōmer, from Old Dutch sumar, from Proto-Germanic sumaraz, from Proto-Indo-European sm̥m-aro-, from Proto-Indo-European sm̥-h₂-ó-, from Proto-Indo-European semh₂- — summer, year.
zomers (Dutch): summery; 25 °C or more
Ancestry of “zomers”, step by step