Where does “zeezout” come from?

zeezout (Dutch) comes from Dutch zee, from Middle Dutch sêe, from Old Dutch sēo, from Proto-West Germanic saiwi, from Proto-Germanic saiwiz, from Proto-Germanic sīhwaną, from Proto-Indo-European seykʷ-, from Proto-Indo-European sey- — to be wet; dribble; run; to stretch one's arm;...

zeezout (Dutch): sea salt