Where does “Gerritsen” come from?
Gerritsen (Dutch) comes from Dutch Gerrit, from Dutch Gerard, from Old French Gerart, from Frankish Gaiʀahard, from Proto-West Germanic gaiʀ, from Proto-Germanic gaizaz, from Proto-Indo-European ǵʰoysós, from Proto-Indo-European ǵʰey- — winter.